-
1
To prepare filling, place colander in a 2-quart glass measure or medium bowl. Line colander with 4 layers of cheesecloth, allowing cheesecloth to extend over outside edges. Spoon yogurt into colander. Cover loosely with plastic wrap; refrigerate 12 hours. Spoon 1 3/4 cups yogurt cheese into a bowl; discard liquid. Place cream cheese in a bowl; beat with a mixer at medium speed until smooth. Add the yogurt cheese, ricotta cheese, 1/2 teaspoon salt, 1/4 teaspoon pepper, and egg yolk. Beat at low speed just until blended.
-
2
Preheat oven to 350u00b0.
-
3
To prepare crust, lightly spoon flour into a dry measuring cup; level with a knife. Place flour, cornmeal, 1 teaspoon sugar, 1/2 teaspoon salt, and dash of pepper in a food processor; pulse 3 times or until combined. Add 2 1/2 tablespoons butter; pulse 4 times or until mixture resembles coarse meal. With processor on, add ice water through food chute, processing just until moist (do not form a ball). Press cornmeal mixture into bottom of an 8-inch springform pan coated with cooking spray. Bake at 350u00b0 for 15 minutes or until lightly browned. Cool on a wire rack.
-
4
To prepare onions, while crust bakes melt 1 teaspoon butter in a large nonstick skillet over medium heat. Add the onion; cook 15 minutes, stirring occasionally. Stir in 1 tablespoon sugar, 1/2 teaspoon salt, and 1/4 teaspoon pepper. Cover and cook 25 minutes or until browned and tender, stirring occasionally. Stir in thyme.
-
5
Spread the yogurt mixture into prepared crust. Bake at 350u00b0 for 35 minutes or until almost set. Cool on a wire rack. (Cheesecake will continue to set as it cools.) Serve at room temperature. Cut cheesecake into wedges, and serve with onions.
