Sift flour, baking powder and salt together.
Cream butter; add sugars and cream well. Add eggs and vanilla; beat until fluffy.
Blend in dry ingredients. Stir in chopped almond toffee.
Spread over bottom of well-greased 9 x 13-inch (18 x 30 cm) pan.
Bake at 350°F (180°C) for about 30 minutes. When cool, cut into bars 3 inches (8 cm) long and 1 inch (2.5 cm) wide.
Serve warm with your favorite cold beverage.