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    Home » Breakfast & Brunch Recipes

    Banana Bread Peanut Butter Crumb Cake

    Published: Jan 22, 2017 by Allison Ferraro · Modified: Sep 21, 2021 · 2 Comments

    Jump to Recipe·Print Recipe

    My favorite banana bread recipe transforms into the most delicious crumb cake with the addition of a soft and sweet peanut butter crumb topping.

    side view of a slice of crumb cake on a white plate this Recipe

    When we were growing up, my little brother was always in charge of making banana bread. He started making it when he was little - because the recipe is so easy and because mashing bananas is fun - and somehow over the years it became his specialty.

    Sometimes he would experiment with variations on our family recipe. He would add chocolate chips or spices like cinnamon and cardamom. I never liked when he added chocolate chips because then mom didn't like us to eat it for breakfast. Some of his variations were good, some were so-so, but nothing ever seemed as good as plain old banana bread.

    So now I'm upping the ante (and being a total hypocrite) and putting a spin on my favorite banana bread that I swear is even better than the original. I'm talking about Banana Bread Peanut Butter Crumb Cake, people!

    angled view of a slice of crumb cake on a white plate

    I didn't change a single thing in the banana bread recipe, since dozens of childhood experiments taught me this recipe is perfect as-is. All I did was bake it in a square cake pan instead of a loaf pan. But not before topping the dough with sweet and crumbly peanut butter goodness.

    The cake is rich and moist, and the crumb topping is the perfect balance of sweet and salty. The peanut butter compliments the banana perfectly. And sorry mom, but I'll be eating this every single day for breakfast!

    More Recipes to Love

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    Love this recipe? Please leave a star rating and review on the recipe below! And don't forget to subscribe to Always Eat Dessert for even more simple recipes, baking tips, and inspiration.

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    side view of a slice of crumb cake on a white plate

    Banana Bread Peanut Butter Crumb Cake


    • Author: Allison Ferraro
    • Total Time: 1 hour 20 minutes
    • Yield: 9 servings (one 8 inch x 8 inch cake) 1x
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    Description

    Banana bread transforms into the most delicious crumb cake with the addition of a soft and sweet peanut butter crumb topping.


    Ingredients

    Units Scale

    for the peanut butter crumb topping:

    • ⅓ cup granulated sugar
    • ⅓ cup light brown sugar
    • ⅛ tsp. salt
    • 5 Tbsp. unsalted butter
    • ¼ cup peanut butter
    • 1 ¼ cups all-purpose flour

    for the banana bread cake:

    • 8 Tbsp. unsalted butter
    • 3 large bananas, overripe
    • 1 cup granulated sugar
    • 2 cups all-purpose flour
    • 1 large egg
    • ½ tsp. baking soda
    • 1 tsp. baking powder

    Instructions

    1. Make the crumb topping. In a medium bowl, whisk the sugars and salt together.
    2. Melt the butter in a small bowl in the microwave. Stir the peanut butter into the melted butter until the peanut butter melts into the butter.
    3. Stir the peanut butter mixture into the sugar mixture. Add the flour and stir until a crumbly dough forms. Set aside.
    4. Make the banana bread cake. Preheat the oven to 325°F. Place the butter in an 8 inch x 8 inch baking pan and set it in the oven to melt.
    5. In a large bowl, mash the bananas, and then stir in the remaining ingredients.
    6. Remove the pan with the butter from the oven. Carefully tilt the pan to coat the sides with the melted butter, then pour the melted butter into the bowl with the banana mixture and stir to combine.
    7. Pour the banana mixture into the pan and top with the crumb mixture. Gently press the crumbs down into the dough.
    8. Bake for one hour, until a stick inserted into the center of the cake comes out clean. Let the cake cool in the pan.
    9. Once it's cool (or nearly cool), dust the cake with powdered sugar and slice into 9 squares to serve.

    Notes

    Storage: Store in an airtight container at room temperature for up to 4 days.

    • Prep Time: 20 minutes
    • Cook Time: 1 hour
    • Category: Breakfast
    • Method: Baking
    • Cuisine: American

    Keywords: banana bread, crumb cake, streusel topping

    More Breakfast & Brunch Recipes

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    • Sourdough French Toast
    • Mini Blueberry Muffins
    • Cinnamon Applesauce Bread with Streusel Topping

    Reader Interactions

    Comments

    1. Ryann

      January 22, 2017 at 12:49 pm

      Allison - this looks amazing! I can't wait to try it! Also - your images look great 🙂

      Reply
      • Allison

        January 22, 2017 at 5:09 pm

        Thank you so much, Ryann!!

        xx Allison

        Reply

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    Hi there!

    I'm Allison, the cookie-obsessed baker, recipe creator, and food photographer behind Always Eat Dessert.

    Here you’ll find made-from-scratch recipes designed for busy people who love to bake. From cookies to quick breads, you'll discover detailed, easy-to-follow recipes for everyday life along with practical baking tips to help you whip up indulgent treats from scratch with confidence.

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