Red Onion Tri-Mushroom Quiche

Ingredients:

• 1 1/4 cups flour
• 1/3 cup unsalted butter
• 1 egg yolk
• 3 tablespoons ice water
• 1 pinch salt
• 1/4 cup unsalted butter
• 1 large red onion halved and sliced
• 4 ounces cremini mushrooms sliced
• 4 ounces shiitake mushrooms stemmed and sliced
• 4 ounces oyster mushrooms stemmed and sliced
• 2 teaspoons fresh thyme chopped
• 1 egg
• 2 egg yolks
• 1/3 cup heavy cream
• salt and pepper

Steps:

• Sift flour and salt into a bowl
• Add the butter and cut it into the flour until mixture resembles breadcrumbs
• Beat the egg yolk with the water in small bowl
• Sprinkle liquid onto flour mixture and combine with your fingertips
• Form dough into a ball
• Cover and chill for 30 minutes
• Preheat the oven to 375 degrees and grease pie or quiche pan with butter
• Roll out dough on floured surface and then line the pan
• Prick bottom with fork and chill for 30 minutes
• Line with foil and dried beans and bake in the oven for 25 minutes
• Remove the foil and beans and cool on a wire rack
• Reduce oven temp to 350 degrees
• Melt butter in a large heavy bottomed skillet
• Add the onions cover and cook over very low heat stirring occasionally for 20 minutes
• Add mushrooms and thyme and cook for an additional 10 minutes stir often
• Spoon mixture into cooled tart shell and place the pan on a cookie sheet
• Lightly beat the egg with the egg yolks and cream ans season to taste with salt and pepper
• Pour mixture over mushroom filling and bake for 20 minutes or until the filling is set and golden
• Serve hot or at room temperature