Jul 14 2026
RestaurantsLona's Lil EatsBoulder Brownie Recipe

Boulder Brownie Recipe

Inspired by Lona's Lil Eats
Time50m
Serves12

Make Boulder Brownie Recipe in just 50m. Get the full recipe with step-by-step instructions at pekinthechef.com.

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Ingredients

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Dry Ingredients

Wet Ingredients

Optional Add-ins

Method

Preparation

  1. 1

    Preheat the Oven

    Preheat your oven to 350°F (175°C) to prepare for baking.

  2. 2

    Prepare the Pan

    Grease and flour a 9x13 inch baking pan to ensure the brownies do not stick.

Mixing the Batter

  1. 3

    Melt the Butter

    In a medium saucepan, melt the unsalted butter over low heat. Remove from heat and let it cool slightly.

  2. 4

    Combine Wet Ingredients

    In a large mixing bowl, whisk together the melted butter, eggs, and vanilla extract until well combined.

  3. 5

    Mix Dry Ingredients

    In a separate bowl, sift together the flour, sugar, cocoa powder, baking powder, and salt.

  4. 6

    Combine Mixtures

    Gradually add the dry ingredients to the wet ingredients, mixing until just combined. Do not overmix.

Adding Optional Ingredients

  1. 7

    Fold in Add-ins

    Gently fold in the chopped walnuts or pecans and chocolate chips, if using.

Baking

  1. 8

    Pour into Pan

    Pour the brownie batter into the prepared baking pan, spreading it evenly.

  2. 9

    Bake

    Bake in the preheated oven for 25-30 minutes, or until a toothpick inserted into the center comes out with a few moist crumbs.

  3. 10

    Cool

    Once baked, remove from the oven and let the brownies cool in the pan for 10 minutes before transferring to a wire rack to cool completely.

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