1/4 c. vegetable shortening
1/4 c. butter
1/2 c. peanut butter
1/2 c. granulated sugar
1/2 c. brown sugar
1 egg
1 1/4 c. self-rising flour

Mix shortening, butter, peanut butter, sugars, and egg until blended. Add flour, blend. Grease a 12-inch square pan. Press mixture in the pan. Bake at 375 degrees for 20 minutes or until lightly browned. Cool and cut in squares.