Recipes Desserts Cookies Grandma's Banana Cookies 4.8 (5) 5 Reviews 3 Photos These cookies were voted an all-time favorite in our family. They can be made any time of the year-bring them to parties, keep them for your family, save one for yourself, save 10 for yourself, whatever you want! I promise everyone will love this delicious balance of sweet but not too sweet. Eat hot, eat cold, eat these whenever. They can be stored in the freezer or in a container. Submitted by mmich Updated on May 17, 2023 Save Rate Print Share Close Add Photo 3 Prep Time: 30 mins Cook Time: 25 mins Additional Time: 10 mins Total Time: 1 hr 5 mins Servings: 40 Yield: 40 cookies Jump to Nutrition Facts Cook Mode (Keep screen awake) Ingredients 1x 2x 4x Oops! Something went wrong. Our team is working on it. Original recipe (1X) yields 40 servings Cookies: 4 cups all-purpose flour 2 teaspoons baking powder 1 teaspoon salt ½ cup sour cream 1 teaspoon baking soda 1 cup mashed ripe banana 1 teaspoon vanilla extract 1 cup margarine 1 cup white sugar 2 large eggs 1 cup chopped walnuts (Optional) Frosting: ½ cup unsalted butter 1 cup brown sugar ¼ cup milk, or more as needed 2 ½ cups powdered sugar, or to taste Directions Preheat the oven to 350 degrees F (175 degrees C). Grease a cookie sheet. Combine flour, baking powder, and salt in a large bowl. Stir baking soda into sour cream in a separate large bowl; add mashed banana and vanilla. Cream margarine and sugar in a large bowl with an electric mixer. Beat in eggs. Mix in banana-sour cream mixture until incorporated. Add dry ingredients until well combined. Stir in nuts. Drop small spoonfuls of batter onto the prepared cookie sheet; cookies do not expand much in the oven. Bake in the preheated oven, checking occasionally, until bottoms are light golden brown and cookies are set but still a tad soft, 10 to 12 minutes. Remove cookies to a rack to cool. While the cookies are cooling, prepare frosting: Melt butter in a saucepan over medium-low heat. Stir in brown sugar and reduce heat to low. Stir and bring to a boil. Boil, stirring constantly, for 2 minutes. Remove from heat. Stir in 1/4 cup milk and bring to a boil again. Remove from heat and let cool, 10 to 15 minutes. Gradually stir in powdered sugar until frosting is desired consistency. If frosting hardens while working, stir in a little bit of milk. Spread frosting on cooled cookies. Cook's Note: You can use buttermilk for the sour cream in the cookies, and 1% milk for the frosting, if preferred. I Made It Print Nutrition Facts (per serving) 193 Calories 8g Fat 29g Carbs 2g Protein Show Full Nutrition Label Hide Full Nutrition Label Nutrition Facts Servings Per Recipe 40 Calories 193 % Daily Value * Total Fat 8g 10% Saturated Fat 3g 14% Cholesterol 17mg 6% Sodium 165mg 7% Total Carbohydrate 29g 11% Dietary Fiber 1g 2% Protein 2g 4% Vitamin C 1mg 1% Calcium 29mg 2% Iron 1mg 4% Potassium 54mg 1% * Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs. ** Nutrient information is not available for all ingredients. Amount is based on available nutrient data. (-) Information is not currently available for this nutrient. If you are following a medically restrictive diet, please consult your doctor or registered dietitian before preparing this recipe for personal consumption.