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    You are here: Home / Recipes / Dessert

    Frosted Banana Bars

    Published: May 27, 2021 · Modified: May 27, 2021 by Susie Weinrich · This post may contain affiliate links.

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    Frosted Banana Bars are like the dessert version of Classic Banana Bread. They are moist and flavorful, and the cream cheese icing takes them over the top. It is the perfect dessert to make when you have some overripe bananas laying around. This Banana Bar recipe is easy to make and is definitely a crowd pleaser!

    frosted banana bars in a 9x13 baking dish

    If you have a lot of overripe bananas try out this recipe for Banana Muffins too!

    Table of Contents hide
    1 Why This Recipe is Amazing
    2 Ingredients
    3 2 Ingredient Homemade Buttermilk
    4 How to Quickly Ripening Bananas
    5 Frosting Tips
    6 Recipe Tips
    7 Related Recipes
    8 Did you make this recipe?!
    9 Frosted Banana Bars

    Why This Recipe is Amazing

    • The bars are super easy to make!
    • They make a great dessert or sweet breakfast bread.
    • The cream cheese icing is my Grandma’s recipe and will be your new favorite!

    Ingredients

    Here are the ingredients you will need to make banana bars and the cream cheese frosting.

    Banana Bars

    all the ingredients to make banana bars

    Buttermilk – Don’t skip the buttermilk, you need the acid to activate the baking soda. If this isn’t something you keep on hand you can make your own with 2 ingredients. Jump down and read how.

    Cream Cheese Icing

    all the ingredients to make cream cheese icing

    Powdered Sugar– Measure your powdered sugar and then sift it through a fine mesh sieve. This will ensure you have nice and creamy cream cheese icing.

    Butter and Cream Cheese – Make sure that your butter and cream cheese are softened to the core. If it is still solid in the center you will have lumpy frosting.

    2 Ingredient Homemade Buttermilk

    If you do not have buttermilk you can always make your own. It is SO easy!

    Just combine ½ cup milk with ½ tablespoon white vinegar (lemon juice will work too). Stir them together and let it sit for 5 minutes. Stir again and it is ready to use!

    How to Quickly Ripening Bananas

    If you want to make these Frosted Banana Bars NOW but don’t have ripe bananas, here are a few tips to quickly ripen bananas:

    1. PAPER BAG – Separate the bananas from the group stem into individual bananas. Place them in a brown paper bag with one ripe apple or banana. Roll the top down so the bag is closed and let sit at room temp for a day or two.
    2. OVEN – Preheat the oven to 300. Place the unpeeled bananas on a foil lined baking sheet. Pop in the oven for 20-30 minutes. When they are completely black the middle should be softened.
    a pan of bars frosted with cream cheese icing

    Frosting Tips

    When icing your banana bars start with half the frosting. This is called a “crumb coat” which means it doesn’t matter it crumbs get in the icing.

    Then finish with the remaining frosting, making it look pretty!

    To get the pretty swoops in the frosting use the back of a spoon in small sweeping and swirling motions.

    Recipe Tips

    • Make sure your bananas are totally ripe and will mash down to almost liquid.
    • Don’t skip the buttermilk, you need the acid to activate the baking soda.
    • Sift the powdered sugar when you make the cream cheese icing, it will make for smoother consistency.
    • Make sure your butter and cream cheese are softened to the core so you don’t end up with lumpy frosting!

    Related Recipes

    • Easy Banana Bread
    • Easy Banana Bread Muffins Made with Greek Yogurt
    • Cream Cheese Buttercream Frosting
    • Baked Steel Cut Oats with Blueberries

    Susie Weinrich washing produce

    Did you make this recipe?!

    If you make this recipe I would love to hear your review. Pop down to the comment section and connect with me.

    Then sign up for our Weekly Newsletter so you never miss a new recipe!

    Rate This Recipe
    a few slices cut out of a pan of frosted banana bars

    Frosted Banana Bars

    This is a deliciously tender and moist banana bar recipe with a perfect cream cheese frosting. They make a great dessert or sweet breakfast treat!
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    Print Pin Rate
    Prep Time: 15 minutes
    Cook Time: 30 minutes
    Servings: 12 slices
    Calories: 547kcal
    Author: Susie Weinrich

    Equipment

    • 9×13 baking dish

    Ingredients

    Banana Bars

    • 1 cups sugar
    • ½ cup brown sugar
    • ½ cup butter softened
    • 2 eggs
    • 1 teaspoon vanilla
    • 1 cup mashed ripe bananas
    • ½ cup buttermilk
    • 1 teaspoon baking soda
    • 2 cups all purpose flour
    • ½ teaspoon kosher salt

    Cream Cheese Frosting

    • ½  cup butter softened at room temp
    • 8  ounces cream cheese softened at room temp
    • 3½  cups powdered sugar measured and sifted
    • 1 teaspoon vanilla
    Prevent your screen from going dark while you are cooking!

    Instructions

    • Preheat the oven to 350° and grease a 9×13 baking pan.
    • Combine the flour, baking soda, and kosher salt. Set aside.
    • Cream together the butter, sugar and brown sugar. Add in the eggs, vanilla, buttermilk and mashed bananas. Mix until it is combined.
    • Slowly add the flour mixture to the batter. Mix just until it is combined.
    • Pour the batter in the prepared baking pan.
    • Bake 25-30 minutes.
      Test that the middle is baked through by poking with a toothpick, if it comes out clean or with cake crumbs it is ready, if you have batter on the toothpick, loosely cover the cake with foil and bake another 5 minutes.
      (if you are using a dark metal baking pan, it will be done closer to 25 minutes)
    • Cool completely and frost with cream cheese icing.
      Frosting Tip: Start with half the frosting, doing a "crumb coat", then finish with the remaining frosting for a pretty top layer. To make swirls in your frosting use the back of a spoon.

    Cream Cheese Frosting

    • In a stand mixer with a paddle attachment (or bowl with hand held mixer), combine the cream cheese, butter, vanilla and half the powdered sugar. Mix until it comes together.
    • Add the remaining powdered sugar and continue to mix until it is creamy and smooth.

    Storing

    • Keep banana bars at room temp in an airtight container for up to 4 days.

    Notes:

    RECIPE TIPS: 
    • Make sure your bananas are totally ripe and will mash down to almost liquid.
    • Don’t skip the buttermilk, you need the acid to activate the baking soda.
    • Sift the powdered sugar when you make the cream cheese icing, it will make for smoother consistency.
    • Make sure your butter and cream cheese are softened to the core so you don’t end up with lumpy frosting!
    • To quickly soften bananas separate them from the group stem and place in a paper bag with one ripe apple or banana. OR place unpeeled bananas on a foil lined baking sheet in the oven at 300 degrees for 20-30 minutes.
    Did you try this recipe? Connect with me & let me know how it turned out by commenting below!
    Jump to Comments
    Serving: 1serving | Calories: 547kcal | Carbohydrates: 82g | Protein: 5g | Fat: 23g | Saturated Fat: 14g | Trans Fat: 1g | Cholesterol: 90mg | Sodium: 423mg | Potassium: 158mg | Fiber: 1g | Sugar: 63g | Vitamin A: 795IU | Vitamin C: 2mg | Calcium: 51mg | Iron: 1mg

    If nutrition facts are provided they are calculated as an estimate to the best of our knowledge.

    « Cream Cheese Buttercream Frosting
    Classic Margarita on the Rocks »
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    About Susie Weinrich

    Susie Weinrich is the recipe developer, food photographer, and content creator behind Mom's Dinner. She has over 20 years experience in the food industry. Currently, Susie shares all her recipes and food knowledge on Mom's Dinner. You will find her recipes are easy to follow and full of tips and tricks to make sure the recipe you are making turns out perfect!

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