Oatmeal Banana Cookies Recipe

Ingredients

• 1 cup (135g) all-purpose flour
• 1/2 cup (78g) rolled oats or quick oats
• 1 tablespoon (15g) cornstarch
• 1/2 teaspoon baking soda
• 1/2 teaspoon baking powder
• 1/4 teaspoon cinnamon
• 1/8 teaspoon salt
• 1 small over-ripe banana (enough to make about 1/4 cup mashed)
• 1/2 cup (117g) unsalted butter, melted
• 1 large egg
• 1 teaspoon vanilla extract
• 1/2 cup (100g) brown sugar, firmly packed
• 1/4 cup (55g) granulated sugar
• 1/2 cup (75g) walnuts, chopped
• 1/2 cup (75g) chocolate chips