1 cup unsalted butter, softened
1/2 cup icing sugar
2 tsp vanilla
1 3/4 cups all-purpose flour
1/2 cup corn starch
3/4 tsp baking powder
1/4 tsp salt
1 cup Chipits SKOR toffee bits
Preheat oven to 350 degrees F (180 C) Line cookie sheets with parchment paper.
Beat butter, icing sugar and vanilla until creamy. In a seperate bowl combine flour, corn starch, baking powder and salt; stir half into butter mixture. Stir in toffee bits and remaining flour mixture.
Roll heaping tablespoonfulls of dough into balls. Place on prepared cookie sheets, spacing about 2" (5 cm) apart.
Bake in the centre of preheated oven for 15 minutes or until lightly golden. Let cool on pan for 5 minutes. Dust with more icing sugar if desired.