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Banana Walnut Brownies

These Banana Walnut Brownies offer a rich banana flavor and a nice walnut crunch. They are sure to satisfy your sweet cravings. They are also effortless to make, no special baking skills are needed.

four banana walnut brownies stacked on a square plate.

I don’t know about you, but I love banana recipes because they are versatile and delicious. Whether it’s for breakfast, a snack, or even dessert, bananas always add a special touch to any dish.

Why You’ll Love This Recipe 

  • This recipe is a great way to use up ripe bananas before they go bad.
  • You only need simple ingredients so you don’t have to worry about breaking your grocery budget at the store.
  • This recipe is simple to make, so no special skills are needed. Even beginner bakers can make this easy recipe.
four banana walnut brownies stacked on a square plate.

Ingredients 

For this recipe, you will need a few simple baking staples, some bananas, and walnuts. Pick up these ingredients on your next trip to the grocery store, so that you can share this easy banana dessert recipe with your family and friends.

  • large eggs
  • large ripe bananas
  • sugar
  • sour cream
  • unsalted butter
  • pure vanilla extract
  • all purpose flour
  • baking soda
  • salt
  • chopped walnuts

Frosting:

  • unsalted butter
  • powdered sugar
  • pure vanilla extract
  • whole milk
  • pinch salt
  • chopped walnuts for topping

Equipment

You will need a few kitchen tools to help you make this sweet recipe. Gather this list of equipment so you can whip up a batch of these banana brownies today.

  • 9×13 baking dish
  • mixing bowl
  • parchment paper
  • electric mixer
  • medium saucepan
four banana walnut brownies stacked on a square plate.

How to Make These Banana Walnut Brownies

Making these banana brownies is simple. Just follow these step-by-step instructions and you will have a tasty sweet treat to share with your family and friends in no time at all.

  1. Preheat oven to 350 and line a 9×13 baking dish with parchment paper. Set aside.
  2. In a large bowl, whisk together the flour, baking soda, and salt until combined.
  3. Using a standing mixer, beat together the butter, sugar, sour cream, and eggs until smooth and creamy.
  4. Beat in the mashed bananas and vanilla extract until combined.
  5. Gradually mix in the dry ingredients until combined.
  6. Fold in the chopped walnuts.
  7. Pour the batter into the prepared pan. (Easy tip, crunch up the parchment paper before lining baking pan)
  8. Bake in the oven for 25-30 minutes or until lightly golden brown.
  9. Remove from the oven, and allow to cool for about 15 minutes.
  10. Using a medium saucepan, melt the butter over medium heat for 2-4 minutes. Watch the butter carefully, once it starts to turn a slight brown color and smell like roasted nuts, then it’s ready.
  11. Remove from heat and whisk in the powdered sugar, milk, and vanilla.
  12. Add 1-2 more tbsp milk to thin out the icing.
  13. Spread icing over the brownies and top with chopped walnuts.
  14. Allow icing to harden for an hour before cutting and enjoying!

Substitutions and Additions

Here are a few tried and true substitutions that can you use to personalize this recipe to suit your tastebuds.

  • If you’re out of bananas but still want to make this recipe, you can substitute with applesauce or pumpkin puree in equal measure.
  • Not a fan of walnuts or have an allergy? Try substituting them with pecans, and almonds, or even omit nuts altogether.
  • For a lower-fat option, Greek yogurt can replace sour cream. Just use the same amount of Greek yogurt that the recipe calls for in sour cream.

Storage

Storage – Store leftover banana walnut brownies in an airtight container at room temperature for up to 3 days. Make sure to keep them away from the stove and heat sources so that the frosting doesn’t melt.

Freezing – You can also freeze the brownies by wrapping them in plastic wrap and storing them in a plastic bag in the freezer for up to 3 months.

four banana walnut brownies stacked on a square plate.

What to Serve With Brownies

Bananas are delicious as a dessert or snack all on their own. You can also serve with them a glass of milk or a cup of your favorite coffee. I also like to serve them after our favorite meal like this Crockpot Pepperoni Pizza Casserole.

Pro Tips 

Here are a few tips that you can use to make sure that the brownies turn out perfectly for you when you make them.

  • Use room temperature ingredients so that your batter turns out smoothly.
  • Don’t overmix your brownie batter, otherwise you will have tough brownies instead of soft brownies.
  • Watch the brownies closely during the last few minutes of the baking time so that they don’t burn.
  • Allow the brownies to cool slightly before adding the frosting, otherwise all the frosting will melt off.

FAQs

Do you have questions about this delicious recipe? If so, here are the answers to the most commonly asked questions for this recipe:

How can I tell when brownies are done baking?

Brownies are done baking with a toothpick inserted into the center that comes out clean or with just a few moist crumbs.

How can I easily remove brownies from a baking dish?

If you line your baking dish with parchment paper, you will be able to remove the brownies easily and cut them evenly. Just wait until they cool and the frosting sets before you try to remove them from the pan.

How do I thaw brownies?

You can thaw the brownies on the counter at room temperature for a couple of hours.

More Brownie Recipes You May Enjoy

Do you love brownies? If so, give these recipes a try next time:

four banana walnut brownies stacked on a square plate.

Banana Walnut Brownies

These Banana Walnut Brownies are rich, and packed with banana flavor and a tasty crunch from walnuts. The best part? They are incredibly easy to make!

Course Dessert, Snack
Cuisine American
Keyword Banana Brownies, Banana Walnut Brownies, brownies
Prep Time 15 minutes
Cook Time 30 minutes
Cool Time 15 minutes
Total Time 1 hour
Servings 12 Brownies
Author Pam

Ingredients

  • 2 large eggs
  • 3 large ripe bananas mashed
  • 1 1/2 cups granulated sugar
  • 1 cup sour cream
  • 1/2 cup unsalted butter softened
  • 2 teaspoons pure vanilla extract
  • 2 cups all purpose flour
  • 1 teaspoon baking soda
  • 3/4 teaspoon salt
  • 1/2 cup chopped walnuts

Frosting:

  • 1/2 cup unsalted butter
  • 3 cups powdered sugar
  • 1 1/2 teaspoon pure vanilla extract
  • 3 tablespoons Whole milk
  • 1/4 cup chopped walnuts for topping

Instructions

  1. Preheat oven 350 and line a 9 x13 baking dish with parchment paper. (easy tip, crunch up the parchment paper before lining the dish) Set aside.

  2. In a large bowl, whisk together the flour, baking soda, and salt until combined.
  3. Using a standing mixer, beat together the butter, sugar, sour cream and eggs until smooth and creamy.
  4. Beat in the mashed bananas and vanilla extract until combined.
  5. Gradually mix in the dry ingredients until combined.
  6. Fold in the chopped walnuts.
  7. Pour the batter into the prepared pan.
  8. Bake in the oven for 25-30 minutes or until lightly golden brown.
  9. Remove from the oven, and allow to cool for about 15 minutes.
  10. Using a medium sauce pan, melt the butter over medium heat for 2-4 minutes. Watch the butter carefully, once it starts to turn a slight brown color and smell like roasted nuts, then its ready.
  11. Remove from heat and whisk in the powdered sugar, milk and vanilla.
  12. Add in 1-2 more tbsp milk to thin out the icing.
  13. Spread icing over the brownies and top with chopped walnuts.
  14. Allow icing to harden for an hour before cutting and enjoying!

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