Onion Tart
A savory onion tart featuring sweet Bermuda onions, mushrooms, bacon, and a creamy sherry-infused filling, perfect for elegant brunches or light dinners with rich flavors.
Ingredients
Instructions
- Heat butter in a heavy saucepan and stir in thinly sliced onions. Cook, stirring constantly, over medium heat until onions are almost transparent.
- Remove from heat and cool thoroughly.
- Stir in sliced mushrooms.
- In a bowl, combine sour cream with 4 tablespoons of sherry and three well-beaten eggs.
- Stir the sour cream mixture into the cooled onion and mushroom mixture.
- Season with salt, pepper, nutmeg, thyme, and cloves to taste.
- Line a 9-inch pie plate with unbaked flaky piecrust.
- Fill the piecrust with the onion mixture and top with bacon squares.
- Bake at 350°F until filling is firm and crust is lightly browned.
- Serve hot.
Tips & Substitutions
For a richer flavor, consider adding sautéed mushrooms along with the onions. You can also substitute the flaky piecrust with a homemade pastry for a more personal touch. If you prefer a vegetarian version, simply omit the bacon or replace it with a plant-based alternative. Make sure to cool the onion mixture thoroughly before combining with the sour cream to avoid cooking the eggs.
Serving Suggestions
This onion tart is delicious served warm as a main dish or as a side. Pair it with a light salad, such as a French Potato Salad With Bacon, for a balanced meal. It also complements well with a glass of white wine or a light beer. For a hearty meal, consider serving alongside Pork Tenderloin Bake.
Storage & Reheating
Store any leftover onion tart in an airtight container in the refrigerator for up to 3 days. To reheat, place it in a preheated oven at 350°F for about 15-20 minutes until warmed through. You can also microwave individual slices for a quicker option, but the oven will help maintain the crust's texture.
Nutrition & Diet Analysis (per serving)
Each serving of Onion Tart contains roughly 141 calories, with 3g protein, 2g carbohydrates, and 14g fat. It is a good source of vitamin A (10% of the Daily Value). Note that it is relatively high in sodium, at 992mg per serving (43% of the Daily Value).
Estimated from ingredients & per-serving nutrition — verify against package labels for allergies or strict diets.
* % Daily Values based on a 2,000 calorie diet (FDA 2020).
Frequently Asked Questions
Can I use other types of onions for this tart?
While Bermuda onions provide a sweet flavor, you can use other onions like yellow or sweet onions. Red onions can also work, but they will give the tart a different color and flavor profile. Just be mindful that the cooking times might vary slightly depending on the type of onion used.
Can I make this tart ahead of time?
Yes, you can prepare the tart in advance. Assemble it and refrigerate before baking. When ready to serve, bake directly from the fridge, adding a few extra minutes to the baking time. This makes it perfect for gatherings or meal prep during busy weeks.
What can I serve with the onion tart?
The onion tart pairs beautifully with a fresh green salad or roasted vegetables. Consider serving it alongside a bowl of soup, such as Nancy'S French Market Soup, for a complete meal. It also works well as an appetizer for larger gatherings.
Nutrition is estimated from USDA FoodData Central ingredient data and may vary with brand, portion and preparation — see our methodology. This information is for general educational purposes only and is not medical or dietary advice (disclaimer).