Savor the perfect balance of rich, savory flavors in this Caramelized Onion, Smoked Turkey, Mushroom, and Gruyere Quiche. Featuring deeply caramelized onions, earthy cremini mushrooms, smoky turkey, and nutty Gruyere cheese layered in a buttery pie crust, this quiche is elevated with a velvety custard of eggs, cream, and a hint of fresh thyme. Perfect for brunch, lunch, or dinner, this elegant dish pairs gourmet ingredients with approachable technique. It's easy to prepare, bakes to golden perfection, and tastes just as delicious warm as it does at room temperature. Whether you're entertaining guests or treating yourself, this quiche is sure to impress!
Preheat your oven to 375°F (190°C).
Place the pie crust into a 9-inch pie dish. Trim excess dough, crimp the edges, and chill in the refrigerator while preparing the filling.
Heat the butter and olive oil in a large skillet over medium heat.
Thinly slice the onions and add them to the skillet with a pinch of salt. Cook, stirring occasionally, for 20-25 minutes until the onions are golden and caramelized. Set aside to cool.
While the onions cook, clean and slice the mushrooms. Sauté them in the same skillet over medium heat for 5-7 minutes until softened and all moisture is evaporated. Set aside to cool.
Chop the smoked turkey into bite-sized pieces and grate the Gruyere cheese if not pre-shredded.
In a large mixing bowl, whisk together the eggs, heavy cream, whole milk, thyme leaves, salt, and pepper until fully combined.
Layer the caramelized onions, mushrooms, smoked turkey, and Gruyere cheese evenly in the chilled pie crust.
Pour the egg mixture over the layered ingredients, ensuring it fills the crust evenly.
Place the quiche on a baking sheet to catch any drips, and bake in the preheated oven for 40-50 minutes or until the center is set but slightly jiggles when gently shaken.
Remove from the oven and let the quiche cool for at least 10 minutes before slicing and serving.
Enjoy your Caramelized Onion, Smoked Turkey, Mushroom, and Gruyere Quiche warm or at room temperature!
Calories |
3908 | ||
|---|---|---|---|
% Daily Value* |
|||
| Total Fat | 275.4 g | 353% | |
| Saturated Fat | 126.1 g | 630% | |
| Polyunsaturated Fat | 3.9 g | ||
| Cholesterol | 1392 mg | 464% | |
| Sodium | 4833 mg | 210% | |
| Total Carbohydrate | 183.6 g | 67% | |
| Dietary Fiber | 12.7 g | 45% | |
| Total Sugars | 26.8 g | ||
| Protein | 157.7 g | 315% | |
| Vitamin D | 6.0 mcg | 30% | |
| Calcium | 2315 mg | 178% | |
| Iron | 13.6 mg | 76% | |
| Potassium | 2556 mg | 54% | |
*The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.