Ingredients
1 1/2 cups all-purpose flour
2 1/2 Tbsp cocoa powder
1 tsp cornstarch
3/4 tsp baking powder
1/4 tsp salt
1/2 cup butter, softened
1 cup granulated sugar
1 tsp distilled white vinegar
1 large egg
1 1/2 tsp vanilla extract
1 1/2 tsp red food coloring
3/4 cup white chocolate chips, divided
Preparation