INGREDIENTS
6 tbsp
unsalted butter, melted, plus more for pan
1/2 cup
all-purpose flour, (spooned and leveled)
1/2 cup
whole-wheat flour (spooned and leveled)
1/3 cup
unsweetened cocoa powder
1 1/4 tsp
baking powder
1 tsp
coarse salt
1/4 tsp
baking soda
1 cup
packed light-brown sugar
1 1/4 cups
unsweetened applesauce
1
large egg
8 oz
semisweet chocolate, coarsely chopped