INGREDIENTS
3/4 cup
unsalted butter
2 cups
flour
1/2 tsp
baking soda
1/2 tsp
salt
1/2 tsp
corn starch
1 tbsp
vanilla
1 cup
brown sugar
1/2 cup
granulated sugar
1
egg, plus 1 egg yolk
1 cup
chocolate chips (semisweet or milk, or combination)
1 cup
toffee bits or chopped toffee bar, i.e. Heath, Daim