Cinnamon Coffee Cake

1 cup butter, softened
2-3/4 cups sugar, divided
2 teaspoons vanilla extract
4 eggs
3 cups all-purpose flour
1 teaspoon baking soda
1 teaspoon salt
2 cups (16 ounces) sour cream
2 tablespoons ground cinnamon
1/2 cup chopped walnuts

In a large mixing bowl, cream butter and 2 cups sugar until light fluffy. Add eggs, one at a time, beating well after each addition.

Beat in vanilla. Combine flour, baking soda and salt; add alternately with sour cream, beating just enough after each addition to keep batter smooth.

Spoon a third of batter into a greased 10-in. tube pan. Combine cinnamon, nuts and remaining sugar; sprinkle a third over batter in pan.

Repeat layers two more times. Bake at 350° for 60-65 minutes or until a toothpick inserted near the center comes out clean. Cool for 15 minutes before removing from pan to a wire rack to cool completely. Makes 16-20 servings.