
Oven-baked Crab Imperial stuffed mushrooms are a decadent and elegant appetizer that combines the rich, savory flavors of crab meat with the earthy, tender texture of mushrooms. This dish is perfect for special occasions or as a sophisticated starter, offering a luxurious twist on traditional stuffed mushrooms. The process involves carefully hollowing out mushroom caps, filling them with a creamy, seasoned mixture of crab meat, breadcrumbs, and herbs, and then baking them to golden perfection. With its balance of flavors and textures, this recipe is sure to impress guests and elevate any dining experience.
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What You'll Learn
- Prepping Mushrooms: Clean, de-stem, and hollow caps for stuffing; pat dry to ensure crispness
- Making Crab Imperial: Mix crabmeat, mayo, mustard, Old Bay, and breadcrumbs for filling
- Stuffing Mushrooms: Fill caps generously with crab mixture; press lightly to secure filling
- Baking Tips: Bake at 375°F for 20-25 minutes until golden and bubbly
- Serving Suggestions: Garnish with parsley, lemon wedges, or aioli for extra flavor

Prepping Mushrooms: Clean, de-stem, and hollow caps for stuffing; pat dry to ensure crispness
When preparing mushrooms for your crab imperial stuffed mushrooms, the first step is to select the right type of mushrooms. Large, firm button mushrooms or cremini mushrooms work best for stuffing due to their size and sturdy caps. Once you have your mushrooms, start by gently cleaning them. Use a damp paper towel or a soft brush to wipe away any dirt or debris from the surface. Avoid rinsing the mushrooms under water as they can absorb moisture, which may affect their texture during baking. Proper cleaning ensures that your mushrooms are free from grit while maintaining their natural flavor and structure.
Next, de-stem the mushrooms by carefully twisting and pulling the stems away from the caps. This step is crucial as it creates space for the crab imperial stuffing. After removing the stems, use a small spoon or a melon baller to gently hollow out the inside of the mushroom caps. Be cautious not to pierce through the bottom or sides of the caps, as they need to remain intact to hold the stuffing. The goal is to create a shallow cavity that will cradle the crab mixture without spilling over.
Once the caps are hollowed, it’s essential to pat them dry with a clean paper towel. This step is often overlooked but is vital for achieving crispness during baking. Removing excess moisture from the mushrooms prevents them from becoming soggy or steaming inside the oven. Dry caps will brown nicely and provide a satisfying texture that complements the creamy crab imperial stuffing. Take your time to ensure each cap is thoroughly dried, especially around the edges and the hollowed area.
If you have time, let the prepared mushroom caps sit on a paper towel-lined tray for a few minutes to air dry further. This extra step can make a noticeable difference in the final texture of your baked mushrooms. While the caps are drying, you can focus on preparing the crab imperial stuffing, ensuring that each component of your dish is ready for assembly. Properly prepped mushrooms are the foundation of a successful stuffed mushroom recipe, so attention to detail in cleaning, de-stemming, hollowing, and drying will pay off in the end.
Finally, arrange the prepped mushroom caps on a baking sheet or in a baking dish, ready to be filled with the crab imperial mixture. The cleanliness and dryness of the caps will contribute to a dish that not only tastes delicious but also looks appetizing. By taking the time to meticulously prep your mushrooms, you’re setting the stage for a crispy, flavorful appetizer that will impress your guests or satisfy your own cravings. With the mushrooms ready, you’re one step closer to enjoying oven-baked crab imperial stuffed mushrooms that are both elegant and indulgent.
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Making Crab Imperial: Mix crabmeat, mayo, mustard, Old Bay, and breadcrumbs for filling
To begin making the Crab Imperial filling for your stuffed mushrooms, start by gathering your ingredients: fresh crabmeat, mayonnaise, Dijon mustard, Old Bay seasoning, and breadcrumbs. Ensure the crabmeat is well-drained and picked over for any shells to guarantee a smooth, enjoyable texture. In a medium-sized mixing bowl, combine 8 ounces of lump crabmeat with 3 tablespoons of mayonnaise, which will serve as the creamy base that binds the mixture together. The mayonnaise not only adds richness but also helps the filling hold its shape during baking.
Next, add 1 teaspoon of Dijon mustard to the bowl, stirring it into the crabmeat and mayonnaise mixture. The Dijon mustard provides a subtle tang that complements the sweetness of the crabmeat without overpowering it. Follow this by sprinkling in 1 teaspoon of Old Bay seasoning, a classic Chesapeake Bay spice blend that adds a distinctive savory and slightly spicy flavor profile essential to Crab Imperial. Gently fold these ingredients together, taking care not to break up the delicate crabmeat chunks.
Once the wet ingredients are well combined, it’s time to incorporate the breadcrumbs. Add 2 tablespoons of plain breadcrumbs to the mixture, which will help absorb excess moisture and provide a slight texture contrast to the creamy filling. Mix everything together until just combined—overmixing can lead to a dense filling, so use a light hand. The goal is to maintain the integrity of the crabmeat while ensuring the flavors are evenly distributed.
Before using the Crab Imperial mixture to stuff your mushrooms, taste a small amount and adjust the seasoning if needed. If you prefer a spicier kick, add a pinch more Old Bay; for more tang, a tiny bit of extra mustard will do the trick. The filling should be flavorful, moist, and cohesive enough to mound lightly into the mushroom caps without being too wet or dry. Once perfected, this Crab Imperial mixture is ready to transform simple mushrooms into an elegant, oven-baked appetizer.
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Stuffing Mushrooms: Fill caps generously with crab mixture; press lightly to secure filling
To begin stuffing your mushrooms for the Crab Imperial recipe, ensure your mushroom caps are clean and dry. Carefully remove the stems from the caps, creating a hollow space for the crab mixture. It’s important to handle the caps gently to avoid breaking them, as they will serve as the base for your dish. Once the caps are prepared, place them on a baking sheet or oven-safe dish, with the opening side up, ready to be filled. This step sets the foundation for a successful stuffing process, ensuring the caps are stable and ready to hold the generous crab mixture.
Next, prepare your crab imperial mixture according to your chosen recipe, combining lump crab meat, breadcrumbs, mayonnaise, mustard, Old Bay seasoning, and any other desired ingredients. The mixture should be moist but not soggy, allowing it to hold its shape when spooned into the mushroom caps. Once the mixture is ready, use a spoon or small scoop to fill each mushroom cap generously. Aim to mound the mixture slightly above the rim of the cap, as it will settle and shrink slightly during baking. This ensures a plentiful and visually appealing stuffed mushroom.
As you fill each cap, take care to distribute the crab mixture evenly, ensuring every mushroom is well-stuffed. If the mixture contains larger lumps of crab meat, gently press them into the cap to avoid spillage. The goal is to create a cohesive and compact filling that will stay in place during baking. Avoid overpacking the caps, as this can cause the mixture to spill out or become too dense. A light hand during this step ensures the mushrooms remain delicate and flavorful.
Once all the caps are filled, lightly press the crab mixture with your fingertips or the back of a spoon to secure the filling. This gentle pressure helps the mixture adhere to the cap and prevents it from falling out during handling or baking. The filling should feel firm but not compressed, maintaining its light and airy texture. This step is crucial for achieving a professional-looking dish where the crab imperial mixture stays neatly in place.
Finally, take a moment to inspect your stuffed mushrooms, ensuring each one is filled generously and the mixture is securely pressed into the caps. If any caps have excess filling that extends too far beyond the edges, gently reshape it to create a neat appearance. Properly stuffed mushrooms not only look appetizing but also bake evenly, allowing the flavors to meld together perfectly. With the caps now expertly filled and secured, they are ready to be topped with breadcrumbs or cheese (if desired) and baked to golden perfection in the oven.
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Baking Tips: Bake at 375°F for 20-25 minutes until golden and bubbly
When baking crab imperial stuffed mushrooms at 375°F for 20-25 minutes until golden and bubbly, preheating your oven is crucial. This ensures the mushrooms cook evenly and achieve the desired texture. Place the stuffed mushrooms on a baking sheet lined with parchment paper or lightly greased with cooking spray to prevent sticking. Arrange them in a single layer, leaving a little space between each mushroom to allow hot air to circulate, promoting even cooking and browning. Avoid overcrowding, as it can lead to steaming instead of baking, resulting in a soggy texture.
Monitoring the baking process is key to achieving the perfect golden and bubbly finish. After 15 minutes, start checking the mushrooms regularly. The crab imperial stuffing should be heated through, and the top should be lightly browned and bubbling. If the tops are browning too quickly but the stuffing isn’t hot enough, loosely tent the baking sheet with aluminum foil to prevent further browning while the mushrooms finish cooking. This balance ensures the stuffing is cooked thoroughly without burning the delicate mushroom caps.
The baking time of 20-25 minutes is a guideline, and actual time may vary depending on your oven and the size of the mushrooms. Larger mushroom caps may take closer to 25 minutes, while smaller ones might be ready in 20 minutes. To test for doneness, insert a small knife into the center of the stuffing—it should feel hot to the touch. Additionally, the edges of the mushrooms should be tender but not mushy, and the crab mixture should be visibly bubbling, indicating it’s heated through.
For an extra touch of color and flavor, consider broiling the stuffed mushrooms for the last 1-2 minutes of cooking. Keep a close eye on them, as broiling can quickly go from golden to burnt. This step enhances the browning on the crab imperial topping, creating a visually appealing and crispy texture. However, skip this step if your oven’s broiler is too intense or if the mushrooms are already sufficiently browned.
Finally, let the crab imperial stuffed mushrooms rest for 2-3 minutes after removing them from the oven. This allows the juices to settle, making them easier to handle and serve. Serve them immediately while they’re warm and bubbly for the best flavor and texture. Pairing them with a garnish of fresh parsley or a squeeze of lemon can elevate the dish, adding brightness to the rich, savory flavors of the crab and mushrooms.
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Serving Suggestions: Garnish with parsley, lemon wedges, or aioli for extra flavor
When serving your oven-baked crab imperial stuffed mushrooms, garnishes play a crucial role in enhancing both the visual appeal and the flavor profile of the dish. Fresh parsley is an excellent starting point. Finely chop a handful of flat-leaf or curly parsley and sprinkle it over the mushrooms just before serving. The bright green color of parsley contrasts beautifully with the golden-brown topping of the stuffed mushrooms, while its mild herbal notes complement the richness of the crab imperial filling without overpowering it. To ensure the parsley stays vibrant, add it after the mushrooms have come out of the oven, as the residual heat can cause it to wilt if left too long.
Lemon wedges are another fantastic garnish that adds a refreshing acidity to balance the dish. Cut a fresh lemon into small wedges and place one or two alongside each serving of stuffed mushrooms. Encourage your guests to squeeze a little lemon juice over the mushrooms just before taking a bite. The citrus brightness cuts through the creaminess of the crab imperial, making each mouthful feel lighter and more dynamic. For an extra touch, you can also zest a small amount of lemon over the dish for a subtle aromatic boost.
If you're looking to add a creamy, garlicky element, aioli is a perfect choice. Prepare a simple aioli by whisking together mayonnaise, minced garlic, a squeeze of lemon juice, and a pinch of salt. Serve a small dollop of aioli on the side or drizzle it lightly over the mushrooms. The richness of the aioli pairs beautifully with the crab, while the garlic adds depth and complexity. For a more elegant presentation, use a piping bag to create a decorative swirl of aioli on the plate.
Combining these garnishes can elevate your dish even further. For instance, pair a sprinkle of parsley with a lemon wedge for a classic, fresh presentation. Alternatively, serve a dollop of aioli alongside a lemon wedge to allow guests to customize their flavor experience. Remember, the goal is to enhance the natural flavors of the crab imperial stuffed mushrooms, not to overshadow them. Keep the garnishes simple yet intentional, ensuring they contribute to a harmonious and memorable dining experience.
Finally, consider the plating to make the dish as appealing as it is delicious. Arrange the stuffed mushrooms on a clean, white plate or a rustic wooden board to let the colors of the garnishes pop. Place the parsley, lemon wedges, or aioli strategically around the mushrooms to create a balanced and inviting composition. A well-plated dish not only tastes better but also shows your attention to detail, making the meal feel special and thoughtfully prepared. With these serving suggestions, your oven-baked crab imperial stuffed mushrooms are sure to impress.
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Frequently asked questions
You’ll need large button or cremini mushrooms, crab meat (fresh or canned), breadcrumbs, mayonnaise, grated Parmesan cheese, garlic, lemon juice, Old Bay seasoning, butter, and fresh parsley for garnish.
Gently remove the stems from the mushrooms and scoop out the gills to create a hollow cavity. Wipe the caps clean with a damp cloth or paper towel instead of washing them to avoid sogginess.
Preheat your oven to 375°F (190°C) and bake the stuffed mushrooms for 20-25 minutes, or until the filling is golden brown and the mushrooms are tender.
Yes, you can mix the crab imperial stuffing (crab meat, breadcrumbs, mayo, etc.) up to a day ahead and store it in the refrigerator. Stuff the mushrooms just before baking for the best texture.
Pat the crab meat dry before mixing it into the stuffing, and avoid overfilling the mushrooms. Baking them on a preheated baking sheet or adding a light coating of butter to the caps can also help prevent excess moisture.

























