1 and 1/2 cups all-purpose flour
1/2 cup unsalted butter, softened
1/2 cup light brown sugar, packed
1 teaspoon vanilla extract
1/2 cup mashed ripe bananas (about 1 large banana)
1 cup old-fashioned rolled oats
1/2 cup chopped walnuts (optional)
1/2 cup chocolate chips (optional)
see continuation on next page
