Mix flour, baking powder an salt, set aside. Cream butter. Gradually add sugar and continue beating until light and fluffy. Add egg and van extract, beat well. Gradually add flour mixture mixing well after each addition. Divide dough in half, blend chocolate into one half. Use prepared doughs to make pinwheels
Making pinwheel cookies. Roll chocolate and vanilla doughs separately between sheets of waxed paper into 12x8 rectangles. Remove top sheets of paper and invert vanilla dough onto chocolate dough. Removing remaining papers. Roll up as a jelly roll, then wrap in waxed paper, chill until firm.
Recipe submitted by Nick on 10/2/00