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Chocolate Rhubarb Brownies Recipe

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 3.9 from 58 reviews
  • Author: admin
  • Prep Time: 10 minutes
  • Cook Time: 25 minutes
  • Total Time: 35 minutes
  • Yield: 9 brownies
  • Category: Dessert
  • Method: Baking
  • Cuisine: American
  • Diet: Vegetarian

Description

Delight in these rich and moist Chocolate Rhubarb Brownies, a unique twist on classic brownies that combine the tartness of fresh rhubarb with decadent chocolate and crunchy nuts. Perfect as a sweet treat or dessert, these brownies feature a fudgy texture and a burst of flavor from tangy rhubarb pieces mixed throughout the batter.


Ingredients

Scale

Wet Ingredients

  • 1 cup granulated sugar
  • 1/2 cup vegetable oil
  • 2 large eggs
  • 1 teaspoon vanilla extract

Dry Ingredients

  • 1/2 cup all-purpose flour (can substitute gluten-free or almond flour)
  • 1/3 cup cocoa powder
  • 1/2 teaspoon baking powder
  • 1/2 teaspoon sea salt

Add-ins

  • 1 cup rhubarb, diced small
  • 1/2 cup dark chocolate chips
  • 1/2 cup chopped walnuts or pecans


Instructions

  1. Prep Oven and Pan: Preheat your oven to 375°F (190°C). Line an 8×8 inch baking pan with parchment paper and lightly butter the top to prevent sticking. This ensures the brownies bake evenly and come out easily.
  2. Combine Wet Ingredients: In a medium bowl, whisk together the sugar, vegetable oil, eggs, and vanilla extract until the mixture is smooth and fully combined, ensuring the base is well emulsified for moist brownies.
  3. Mix Dry Ingredients: In a separate large bowl, sift or whisk together the flour, cocoa powder, baking powder, and sea salt until evenly blended, distributing the leavening and cocoa for uniform flavor.
  4. Combine Wet and Dry: Pour the wet ingredient mixture into the dry ingredients and stir gently just until incorporated, taking care not to overmix to keep the brownie texture tender and fudgy.
  5. Add Rhubarb, Chocolate Chips, and Nuts: Fold in the diced rhubarb, dark chocolate chips, and chopped walnuts or pecans evenly through the batter, adding a balance of tartness, chocolate richness, and crunch.
  6. Bake: Pour the batter into the prepared baking pan and smooth out the top evenly. Bake in the preheated oven for 20–25 minutes, or until a toothpick inserted in the center comes out mostly clean. If using frozen rhubarb, extend baking time by 10–15 minutes to ensure even cooking.
  7. Cool and Serve: Remove the brownies from the oven and allow them to cool in the pan for at least 10 minutes before lifting out the parchment. Cut into 9 squares and serve warm or at room temperature for the best texture and flavor.

Notes

  • If fresh rhubarb is unavailable, frozen rhubarb can be used but may require longer baking time.
  • For a nut-free version, simply omit the walnuts or pecans or substitute with seeds such as pumpkin or sunflower seeds.
  • Adjust the sugar amount slightly depending on the tartness of your rhubarb for a balanced sweetness.
  • Parchment paper helps with easy removal and cleanup; buttering the top prevents sticking further.
  • These brownies store well in an airtight container at room temperature for up to 3 days or in the refrigerator for up to a week.