INGREDIENTS
1 cup
unsalted butter
1 1/2 cups
granulated sugar
2
eggs
3 tbsp
cocoa powder
1/2 tsp
salt
1 tsp
vanilla extract
1 tsp
white vinegar
1 tsp
baking powder
2 cups
all purpose flour
1 1/2 tbsp
red food coloring
2 cups
semi sweet chocolate chips