INGREDIENTS
1/2 cup
Banana, ripe
1
Egg, large
1 cup
Rolled oats, old-fashioned
1 cup
All-purpose flour
1/2 tsp
Baking soda
1/2 cup
Brown sugar, packed light
8 oz
Chocolate, semisweet
1/2 cup
Granulated sugar
1 tsp
Salt, coarse
1 1/2 tsp
Vanilla extract, pure
1/2 cup
Whole-wheat flour
1
coarsely chopped walnuts (about 2 ounces)
3/4 cup
Butter, unsalted