INGREDIENTS
2 cups
plus 2 tablespoons all purpose flour
1/2 tsp
baking powder
1/2 tsp
baking soda
1/2 tsp
salt
1 tbsp
cornstarch
3/4 cup
butter softened
1 1/4 cups
sugar
1
egg plus 1 egg yolk
1 tsp
vanilla extract
1/4 tsp
butter flavoring (sold by other flavor extracts)
2 tbsp
fresh lemon juice
zest of one lemon
sparkling sugar