Gruyere Ring (Gougère)

1 cup milk
1/2 cup butter or margarine
1 cup all-purpose flour
4 eggs, slightly beaten
1 cup shredded Gruyère cheese

Preheat oven to 400 degrees F

 Heat milk and butter to rolling boil in 2-quart saucepan. Stir in flour. Stir vigorously over low heat until mixture forms a ball, about 1 minute; remove from heat. Beat in 4 eggs all at once; continue beating until smooth. Fold in 2/3 cup of the cheese. Drop dough by tablespoonsful onto greased cookie sheet to form 8-inch ring; smooth with spatula. Sprinkle with remaining cheese. Bake until puffed and golden, 50 to 60 minutes.