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Banana Brownie Recipe Fudgy Slab With Golden Banana Marble 1761425061.2411635

banana brownie recipe Fudgy Slab with Golden Banana Marble


  • Author: Elina Mirkle
  • Total Time: 108 minutes
  • Yield: 18-24 squares 1x
  • Diet: General

Description

This Fudgy Slab Banana Brownie recipe combines moist banana bread and decadent brownies, delivering a rich, fruity, and fudgy texture with a beautiful golden banana marble swirl, perfect for satisfying sweet cravings. It is an easy, family-friendly dessert.


Ingredients

Scale
  • 23 large (approx. 200250 g) ripe bananas, for mashing
  • 0.5 cup (45 g) unsweetened cocoa powder
  • 1 cup (120 g) all-purpose flour
  • 0.5 cup (113 g) butter, melted
  • 2 large eggs
  • 1 cup (200 g) granulated sugar
  • 0.5 cup (100 g) brown sugar
  • 1 tsp vanilla extract
  • 0.5 tsp baking powder
  • 0.25 tsp salt

Instructions

  1. Prep Your Pan: Preheat oven to 350F (175C). Line a 9×13 inch baking pan with parchment paper, leaving an overhang on the longer sides for easy removal.
  2. Mash the Bananas: In a medium bowl, mash 2-3 ripe bananas until mostly smooth, leaving a few small lumps for texture.
  3. Melt and Mix Wet Ingredients: In a large microwave-safe bowl, melt 0.5 cup (113 g) butter for about 30-45 seconds. Stir in 1 cup granulated sugar, 0.5 cup brown sugar, 2 large eggs, and 1 tsp vanilla extract until well combined and glossy, about 1 minute.
  4. Whisk Dry Ingredients: In a separate bowl, whisk together 1 cup all-purpose flour, 0.5 cup unsweetened cocoa powder, 0.5 tsp baking powder, and 0.25 tsp salt until fully blended, about 30 seconds.
  5. Combine Batter: Gradually add the dry ingredients to the wet ingredients, mixing gently until just combined. Do not overmix. If the batter looks too thick or dry, splash in 1-2 Tbsp of milk or a plant-based alternative.
  6. Marble the Brownies: Spoon half of the brownie batter evenly into the prepared pan. Dollop the mashed bananas over the batter. Cover with the remaining brownie batter. Use a knife or skewer to gently swirl the banana through the top layer for a beautiful golden banana marble effect, using just 4-5 passes.
  7. Bake Brownies: Bake for 25-30 minutes, or until a toothpick inserted into the center comes out with moist crumbs, but not wet batter. The edges should look set and slightly puffed.
  8. Cool and Cut: Let cool completely in the pan for at least 1 hour before lifting out by the parchment paper and cutting into 18-24 fudgy slab banana brownie squares. Avoid cutting while warm to prevent crumbling and ensure a clean cut.

Notes

For the best flavor, always use very ripe, spotty bananas. Do not overmix the batter to avoid tough brownies. For a chewier brownie, bake closer to 25 minutes; for a cakier one, closer to 30 minutes. Let cool completely before cutting for clean squares.

  • Prep Time: 20 minutes
  • Cook Time: 28 minutes
  • Category: Dessert
  • Method: Baking
  • Cuisine: American

Nutrition

  • Serving Size: 1 square
  • Calories: 250 calories
  • Sugar: 25 g
  • Sodium: 100 mg
  • Fat: 14 g
  • Saturated Fat: 6 g
  • Unsaturated Fat: 8 g
  • Trans Fat: 0 g
  • Carbohydrates: 35 g
  • Fiber: 2 g
  • Protein: 3 g
  • Cholesterol: 30 mg

Keywords: easy dessert, fudgy brownie, banana marble, slab brownie, home-style bake, sweet treat, family-friendly, ripe banana