You are here: Home » Recipes » Comté Onion Tart Comté Onion Tart Kitchen Tested Yield 6 servings Prep 10 mins Cook 62 mins Comté is similar to Gruyere cheese and brings nutty, earthy richness to classic cheese recipes. PrintEmail You can make this rich cheesy onion tart several days ahead and refrigerate until ready to heat and serve. Ingredients 1 tablespoon coarse-grain mustard1 (9-inch) unbaked pie crust1 tablespoon extra-virgin olive oil2 medium onions, thinly sliced1 teaspoon fresh thyme3 eggs1 1/4 cups half-and-half1/4 teaspoon salt1/4 teaspoon freshly ground black pepper, divided1 1/2 cups (6-ounces) shredded Comté cheese Instructions Preheat oven to 375F. Rub mustard over pie crust. Refrigerate 30 minutes. Prick crust with a fork. Line with wax paper or aluminum foil, add dry beans or pie weights, and bake 12 minutes. Remove from oven and cool. Heat oil in a medium skillet over medium heat. Add onions and thyme; cook, stirring occasionally, until onions soften and caramelize, about 25 minutes. Remove from heat and cool. Combine eggs, half-and-half, salt and pepper; whisk until well blended. Sprinkle cheese over bottom of crust. Pour in egg mixture. Spoon onions over egg mixture. Bake 25 minutes, or until custard is set and top is golden brown Recipe by Nancy Vienneau.