Tomato and Caramelized Onion Tart

Delicious! Everyone loved this tomato tart. We ate it in one sitting.


Tomato and Caramalized Onion Tart
adapted from tarte du jour

Ingredients:
1 recipe whole wheat and olive oil pastry crust
2 large red onions, thinly sliced
2 Tbs. olive oil
2 Tbs. minced fresh thyme
1.5 tsp. salt
4 oz. gruyere cheese, grated
2 large eggs
1 cup cream
3 Roma tomatoes (or any other kind), sliced 1/2" thick

Instructions:
1. Preheat oven to 375 F (190 C).
2. Heat olive oil on medium-high heat in large pan. Add onions, 1/2 of the thyme, and 1 tsp. salt. Stir, scrapping the bottom constantly, until onions are completely caramelized (about 20-25 minutes).
3. In large bowl, beat together eggs, cream, and remaining 1/2 tsp. salt.
4. Place caramelized onions in pre-baked tart crust, spreading evenly. Pour custard over the top. Sprinkle cheese over the top of the onions. Arrange tomato slices cut-side up over cheese. Sprinkle with salt, pepper, and rest of the thyme.
5. Bake 40-45 minutes until top is lightly golden brown.