Cinnamon Coffee Cake
["1 c. butter or margarine, softened", "2 3/4 c. sugar, divided", "2 tsp. vanilla", "4 eggs", "3 c. flour", "2 tsp. baking powder", "1 tsp. soda", "1 tsp. salt", "2 c. (16 oz.) sour cream", "2 Tbsp. cinnamon", "1/2 c. chopped walnuts"]
["In a large bowl, cream the butter and 2 cups of sugar until fluffy.", "Add vanilla.", "Add eggs, one at a time, beating well after each addition.", "Combine flour, baking powder, soda and salt.", "Add alternately with sour cream, beating just enough after each addition to keep batter smooth.", "Spoon 1/3 of batter into a greased 10-inch tube pan."]
["butter", "sugar", "vanilla", "eggs", "flour", "baking powder", "soda", "salt", "sour cream", "cinnamon", "walnuts"]