Sour Cream Raisin Bars

2 cups raisins
1 cup butter
1 cup brown sugar
1/4 teaspoon salt
1 teaspoon vanilla extract
1 3/4 cups flour
1 3/4 cups oatmeal
1 teaspoon baking soda
3 tablespoons cornstarch
3 egg yolks
1 cup sour cream
1 cup granulated sugar

Cream the butter and brown sugar. Add flour, oatmeal and soda; mix until crumbly. Press two-thirds of batter into a 9 x 13-inch pan. Bake at 350 degrees F for 10 minutes.

Combine the cornstarch, salt, egg yolks, sour cream and sugar; cook over low heat until mixture boils, stirring constantly. Add raisins and vanilla extract; remove from heat and pour over crust. Sprinkle remaining batter on top. Bake an additional 35 minutes.