- **Caramelized Onion Mushroom and Gruyère Quiche Oat Crust Ingredients:**
- All-purpose flour (for dusting)
- Quick-cooking oats (for the base of the crust)
- Cold unsalted butter, cut into small pieces (for flakiness in the crust)
- Sea salt (to season and enhance flavor)
- Freshly ground black pepper (for added depth of flavor)
- Finely sliced onions (for caramelization)
- Mushrooms (such as cremini or button mushrooms for rich flavor)
- Olive oil (for sautéing the onions and mushrooms)
- Garlic cloves, minced (optional but recommended for extra flavor)
- Gruyère cheese, grated (for a creamy and tangy addition to the quiche)
- Heavy cream or milk (for a smooth texture)
- Egg yolks (for binding and richness in the filling)
- Salt and pepper (to taste, adjust according to personal preference)
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### Caramelized Onion Mushroom and Gruyère Quiche Oat Crust Recipe
#### Introduction
Looking for a delicious and healthy twist on traditional quiches? Try making this caramelized onion mushroom and gruyère quiche with an oat crust! This recipe combines the rich, savory flavors of caramelized onions and mushrooms with the creamy goodness of Gruyère cheese. The addition of oats in the crust adds a delightful crunch and a boost of fiber.
#### Ingredients
- 1 cup rolled oats
- 2 tablespoons melted butter
- 3 large onions, thinly sliced
- 2 cups fresh mushrooms, quartered
- 4 large eggs
- 1 cup heavy cream
- ½ cup grated Gruyère cheese
- Salt and pepper to taste
#### Equipment Needed
- Baking sheet lined with parchment paper
- Mixing bowl
- Rolling pin
- 9-inch pie dish
#### Steps to Make Caramelized Onion Mushroom and Gruyère Quiche Oat Crust
1. **Prep the Oat Crust**
- Preheat your oven to 375°F (190°C).
- In a medium saucepan, mix oats with melted butter. Cook over low heat, stirring frequently, until the oats are toasted and lightly golden—about 5-7 minutes.
- Remove from heat, press into an 8-inch pie dish, and bake for 12-15 minutes or until slightly golden brown.
2. **Cook the Onions and Mushrooms**
- In a large skillet over medium heat, cook the sliced onions in butter until they become translucent—about 5 minutes.
- Add the quartered mushrooms to the skillet and continue cooking for another 10-12 minutes or until both onions and mushrooms are caramelized. Season with salt and pepper as needed.
3. **Prepare the Quiche Filling**
- In a mixing bowl, beat the eggs and add heavy cream. Whisk together until well combined.
- Stir in the grated Gruyère cheese and cooked onion-mushroom mixture into the egg-cream mixture. Season with salt and pepper to taste.
4. **Assemble the Quiche**
- Pour the filling over the prepared oat crust, ensuring it’s evenly spread out.
- Bake at 375°F (190°C) for about 25-30 minutes or until the edges are set and a knife inserted into the center comes out clean.
5. **Cool and Serve**
- Allow the quiche to cool slightly before slicing and serving.
- Garnish with fresh herbs if desired, and enjoy your delicious homemade caramelized onion mushroom and Gruyère quiche oat crust!
#### Tips for Success
- Ensure all ingredients are at room temperature before starting; this will help the filling incorporate smoothly.
- Use a gentle touch when pressing oats into the pie dish to avoid packing it too tightly.
This recipe is perfect for any occasion, whether you're hosting a dinner party or just looking for a hearty meal. The combination of savory, sweet, and creamy flavors make it a standout dish that everyone will love. Enjoy your cooking!