Name: Brown Butter Pumpkin Espresso Bars with Pumpkin Swirl
Prep time: 15 min
Cook time: 50 min
Total time: 1 h 5 min
Yield: 16 bars
Cuisine: American

Brown Butter Pumpkin Espresso Bars with Pumpkin Swirl

Brown Butter Pumpkin Espresso Bars with Pumpkin Swirl cover

From the Cook

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Brown Butter Pumpkin Espresso Bars with Pumpkin Swirl

Browndis

Instructions

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Instructions

In a light-colored saucepan, melt the butter over medium heat. Stir often until it foams, then turns golden with brown specks on the bottom, about 5–7 minutes. Immediately whisk in the espresso powder until fully dissolved. Set aside to cool slightly.

In a small bowl, mix together the pumpkin puree, sugar, pumpkin pie spice, and a pinch of salt until smooth. Set aside.

Set your oven to 350°F (177°C) so it’s ready when your batter is done. Line an 8x8-inch baking pan with parchment paper, leaving a bit of overhang for easy removal later.

In a large mixing bowl, whisk the cooled brown butter mixture with the brown sugar and granulated sugar until smooth. Add the egg, egg yolks, and vanilla extract. Whisk until the batter looks glossy and thick.

Fold about 3/4 of the pumpkin swirl mixture into the wet batter, leaving streaks for a marbled effect.

Sift in the flour, cinnamon, pumpkin pie spice, clove, baking powder, cornstarch, and salt. Gently fold until just combined. Avoid overmixing so the bars stay tender.

Pour the batter into the prepared baking pan and smooth the top with a spatula. Dollop the remaining pumpkin mixture on top and use a butter knife to gently swirl it into the batter.

Bake for 26–30 minutes, or until the edges are set and the center looks slightly underbaked—it will finish setting as it cools.

Allow the bars to cool completely in the pan before lifting them out with the parchment paper. Slice into squares and enjoy!

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Tips & Tricks (5)

Brown Your Butter Slowly 🧈
Keep the heat at medium and watch the butter constantly, swirling occasionally until it turns golden amber with a nutty aroma (5-7 minutes). Strain out the brown solids through cheesecloth to prevent them from burning and affecting the final texture.
Bloom Your Espresso Powder ☕
Mix espresso powder with a tiny amount of hot water or melted butter to create a concentrated paste before adding to the batter—this intensifies the coffee flavor and prevents grainy, undissolved particles in your bars.
Prevent Dense, Overbaked Bars 🎯
Use cornstarch in addition to flour to create a more tender, fudgy crumb and watch carefully in the final 2-3 minutes of baking—the centers should still have a slight jiggle when you gently shake the pan.
Create a Smooth Pumpkin Swirl 🌀
Thin your pumpkin swirl mixture slightly with melted butter or a touch of pumpkin puree so it spreads easily without dragging through the base batter, then use a toothpick to create elegant feather patterns.
Cool Completely Before Cutting ✂️
Let the bars cool in the pan for at least 2 hours at room temperature, then refrigerate for 1-2 hours before cutting—this allows the fudgy crumb to set properly and creates clean, beautiful slices every time.