- 2 cups whole-milk plain yogurt
- 1 large egg white, lightly beaten
- 2 teaspoons cornstarch
- 1 teaspoon salt
- Whisk together all ingredients in a small heavy saucepan. Cook over moderate heat, stirring, until mixture just comes to a boil, 8 to 10 minutes, then reduce heat to moderately low and simmer until thickened, 3 to 5 minutes more.