INGREDIENTS
2 1/4 cups
flour
2 1/2 Tbsps
cocoa powder
1 1/2 tsps
cornstarch
3/4 tsp
baking soda
1/2 tsp
salt
8 Tbsps
butter
6 Tbsps
vegetable shortening
1 1/2 cups
granulated sugar
1 large
egg
1 large
egg yolk
1 1/2 tsps
white vinegar
1 1/2 tsps
vanilla extract
1 Tbsp
red food coloring
1 1/3 cups
white chocolate chips