INGREDIENTS
1/2 cup
unsalted butter
1/4 cup
granulated sugar
3/4 cup
light brown sugar
1/4 cup
instant vanilla pudding mix (dry)
1/4 cup
instant butterscotch pudding mix (dry)
2
large eggs
1
additional egg yolk
1 tsp
vanilla extract
1 tsp
imitation butter
1/2 tsp
salt
1 tsp
baking soda
2 1/2 cups
all-purpose flour
1 1/2 cups
heath toffee bits (straight toffee, not the chocolate toffee mix)
lightning bolt sprinkles (optional)