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Fudgy Pumpkin Pie Brownies

Fudgy pumpkin pie brownies with a dense chocolate base swirled with a creamy spiced pumpkin layer. Baked until the center stays rich and gooey with silky marbled ribbons that slice into neat squares.
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Prep Time 30 minutes
Cook Time 40 minutes
cooling + chilling 2 hours 30 minutes
Total Time 3 hours 40 minutes
Servings: 16 squares
Course: Dessert
Cuisine: American
Calories: 410
Ingredients Equipment Method Notes

Ingredients
  

brownie base
  • 0.75 cup unsalted butter (1½ sticks)
  • 6 oz semisweet chocolate chopped
  • 1 cup granulated sugar
  • 0.5 cup light brown sugar packed
  • 3 large eggs room temperature
  • 2 tsp vanilla extract
  • 0.75 cup all-purpose flour
  • 0.33 cup unsweetened cocoa powder
  • 0.75 tsp salt
  • 0.5 cup semisweet chocolate chips
pumpkin swirl
  • 4 oz cream cheese softened
  • 0.75 cup pumpkin purée
  • 0.33 cup granulated sugar
  • 1 egg yolk large
  • 2 tbsp all-purpose flour
  • 1.5 tsp pumpkin pie spice
  • 1 tsp vanilla extract
  • 0.125 tsp salt
finishing
  • 0.25 tsp flaky sea salt
  • 2 tbsp mini chocolate chips optional

Equipment

  • 1 sheet pan
  • 1 Dutch oven

Method
 

Prep and heat
  1. Preheat the oven to 350°F (175°C) and line a 9x9-inch pan with parchment paper, leaving overhang on two sides for lifting.
Make the brownie base
  1. Melt the butter and chopped semisweet chocolate together in a heatproof bowl set over simmering water, stirring until smooth, then cool for 5 minutes.
  2. Whisk the granulated sugar and packed light brown sugar into the chocolate mixture until glossy.
  3. Whisk in the eggs one at a time, then add vanilla and beat vigorously for 1 minute for a shiny, crackly top.
  4. Sift in the all-purpose flour, cocoa powder, and salt, then fold just until no dry streaks remain.
  5. Fold in the semisweet chocolate chips.
Make the pumpkin swirl
  1. Beat the cream cheese until completely smooth with no lumps.
  2. Beat in the pumpkin purée, granulated sugar, egg yolk, all-purpose flour, pumpkin pie spice, vanilla extract, and salt until creamy.
Assemble and marble
  1. Spread about three-quarters of the brownie batter evenly in the prepared pan.
  2. Spoon the pumpkin mixture over the top in dollops, then drop the remaining brownie batter in spoonfuls between them.
  3. Drag a butter knife through the batters in an S pattern 4–5 times to marble, taking care not to overmix so the swirl stays visible.
  4. Sprinkle with mini chocolate chips (optional) and flaky sea salt.
Bake, cool, and slice
  1. Bake for 38–43 minutes, until the edges are set and a toothpick in the center comes out with moist crumbs, not wet batter.
  2. Cool completely in the pan for at least 2 hours.
  3. Chill for 1 hour for the cleanest slices.
  4. Lift the brownies out using the parchment, then cut into 16 squares with a warm knife.

Notes

For the cleanest marbling, swirl just 4–5 S passes—overmixing makes the pumpkin layer disappear. Store airtight in the refrigerator up to 4 days; freeze baked squares up to 2 months. For a dairy-light swap, use a dairy-free cream cheese substitute for the pumpkin swirl (the texture will be slightly softer but still marbled).