1 cup butter or margarine, softened
1-1/2 cups sugar
3 eggs
2 cups all-purpose flour
1 teaspoon baking powder
1 teaspoon baking soda
1 cup (8 ounces) sour cream
2 teaspoons vanilla extract
2 cups chopped fresh strawberries

FILLING:
3/4 cup chopped walnuts
1/4 cup sugar
1/4 cup packed brown sugar
3/4 teaspoon ground cinnamon

In a mixing bowl, cream the butter and sugar. Add eggs; mix well. combine the flour, baking powder and baking soda; add to creamed mixture alternately with sour cream. Beat in vanilla. Fold in the strawberries.

Spoon half into a greased and floured 10-in. fluted tube pan. Combine the filling ingredients; sprinkle half over batter. Top with remaining batter and filling.

Bake at 350� for 50-60 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.