Preheat over to 325˚F/165°C. In a mixing bowl, beat egg and sugar until smooth. Add the butter, flour, almond extract and chocolate chips; mix well. Spread into a greased 13 x 9-inch/33 x 23-cm baking pan.
Bake for 30-35 minutes or until a toothpick comes out clean in the center. Cool on wire rack.
Makes 20 bars.