Date Pinwheel Cookies

1/2 cup margarine
2 cups brown sugar, firmly packed
2 eggs, well beaten
4 cups flour
1/2 teaspoon salt
1/2 teaspoon baking soda
1/2 teaspoon cream of tartar
1 teaspoon vanilla extract

Cream together margarine, brown sugar and eggs.

Sift together flour, salt, baking soda and cream of tartar. Add to creamed mixture and blend well. Add vanilla extract. Roll out like a jellyroll. Spread filling on top.

Filling:
1/2 pound dates, chopped up
1/2 cup nuts
1/4 cup water
1/4 cup granulated sugar

Cook until thickened. Spread over rolled out batter. Roll as for a jellyroll. Keep in cool place overnight or until firm.

Slice and bake at 400 degrees F for 15 minutes.