1 1/2 cups mashed ripe banana
1/3 cup plain fat-free yogurt
1/3 cup creamy peanut butter
3 tablespoons butter, melted
2 large eggs
1/2 cup granulated sugar
1/2 cup packed brown sugar
6.75 ounces all-purpose flour (about 1 1/2 cups)
1/4 cup ground flaxseed
3/4 teaspoon baking soda
1/2 teaspoon salt
1/2 teaspoon ground cinnamon
1/8 teaspoon ground allspice
2 tablespoons chopped dry-roasted peanuts
Cooking spray
1/3 cup powdered sugar
1 tablespoon 1% low-fat milk
1 tablespoon creamy peanut butter