Makes 2 dozen bars
Raisin Crumb Bars

1-3/4 c. quick-cooking oats, uncooked
1-3/4 c. all-purpose flour
1 c. brown sugar, packed
1 c. butter, sliced and softened
1 t. baking soda
Optional: 1/2 c. chopped walnuts or pecans

1-1/2 c. sour cream
3 egg yolks
1 c. sugar
3 T. cornstarch
1 t. cinnamon
1/4 t. salt
2 c. Sun-Maid Natural Raisins

Blend oats, flour, brown sugar, butter and baking soda with a pastry blender or 2 knives until mixture resembles coarse crumbs. If desired, blend in nuts. Press 3 cups of mixture into a 13"x9" baking pan. Bake at 350 degrees for 10 minutes or until lightly golden. Remove from oven and set aside. Stir sour cream and egg yolks together in a medium saucepan. Add sugar, cornstarch, cinnamon and salt; stir until well combined. Cook over medium heat, stirring frequently, until mixture is the thickness of stirred yogurt, about 10 minutes. Add raisins to sour cream mixture. Spread over baked crust and sprinkle with remaining crumb mixture. Bake at 350 degrees for 30 minutes until topping is golden. Cool before cutting into bars. Makes 2 dozen.