Ingredients
3/4 cup cold buttermilk
1/4 cup sugar
2 tsp vanilla extract
1 large egg
1 cup all purpose flour (Bob's Red Mill)
1 cup white whole wheat flour (Bob's Red Mill)
1 tbsp baking powder
1/2 tsp salt
3 tbsp chilled butter (must be cold) cut into small pieces
3/4 cup chocolate chips
cooking spray
1 large egg white, lightly beaten
1 1/2 tbsp sugar
Preparation
