Chipits Polka Dot Shortbread
Fine granulated sugar
Semi-sweet chocolate chips
Cream butter and sugar using electric mixer until light and fluffy. Stir in remaining ingredients. Spread into bottom of 13x9-inch ungreased pan.
Bake at 275F (140C) for 45 minutes or until lightly golden around edges.
Cut into bars. Cool.
Source: Chipits ad, Chatelaine magazine, December 1993, page 119