1 tsp. vanilla extract
1/2 c. finely chopped California walnuts
1 tsp. cinnamon
Sugar
1/2 c. butter
2 c. all-purpose flour
1 c. sour cream
2 eggs
1 tsp. double-acting baking powder
1 tsp. baking soda

In small bowl, combine nuts, cinnamon and 1/2 cup sugar; set aside. Preheat oven to 350 degrees. Grease 9-inch tube pan.

In large bowl with mixer on medium speed, beat 1 cup sugar with butter until light and fluffy. Add remaining ingredients and beat at low speed until blended, constantly scraping bowl with spatula.

Spread half of batter in pan; sprinkle with half of nut mixture. Spread evenly with remaining batter and sprinkle with remaining nut mixture. Bake 60 to 65 minutes.