S'mores Brownie Bars

Notes: Marshmallows can be very sticky. For the neatest bars, use a clean, sharp knife to cut the bars, rinsing and wiping the knife thoroughly between cuts.

S'mores Brownie Bars

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About This Recipe

Yield:16 (makes 16 2- by 2-inch bars)
Active time:30 minutes
Total time:2 hours, 30 minutes
This recipe appears in: Weekend Baking Project: S'mores Brownie Bars S'mores Brownie Bars
Rated:

Ingredients

  • 1 cup graham cracker crumbs (made from 10 rectangular crackers)
  • 12 tablespoons (1 1/2 sticks) unsalted butter
  • 1/2 cup plus 1 tablespoon sugar
  • Salt
  • 1 cup bittersweet chocolate chips
  • 2 large eggs, at room temperature
  • 1 teaspoon instant espresso powder
  • 1 1/2 teaspoons vanilla extract
  • 1/4 cup all-purpose flour
  • 3/4 teaspoons baking powder
  • 3 cups mini-marshmallows

Procedures

  1. 1

    Adjust oven rack to middle position and preheat oven to 350°F. Cut two 16-inch pieces of foil and line an 8-inch square baking pan, allowing excess to hang over sides. Spray with nonstick cooking spray.

  2. 2

    Break graham crackers into small pieces and pulse in food processor until they become fine crumbs. Melt 4 tablespoons butter. Add melted butter, 1 tablespoon sugar, and 1/4 teaspoon salt to crumbs and pulse to combine. Press into bottom of prepared pan.

  3. 3

    Melt chocolate and remaining 8 tablespoons butter in medium bowl in microwave, 1 to 2 minutes, stopping every 20 seconds to stir with rubber spatula. Transfer mixture to a large bowl and cool, stirring occasionally, for 10 minutes.

  4. 4

    With a wooden spoon, mix in the remaining 1/2 cup sugar, eggs, espresso powder, vanilla, and 1/4 teaspoon salt. Add the flour and baking powder and mix until smooth.

  5. 5

    Pour batter into prepared pan. Bake for 25 to 30 minutes, until a toothpick inserted into the center of the brownies comes out with moist crumbs attached. Do not over-bake. Transfer to cooling rack and top with marshmallows.

  6. 6

    Adjust oven rack to upper third position and heat broiler. Broil until marshmallows are golden brown, 1 to 3 minutes. Cool in pan 1 hour. Using foil sling, transfer directly to wire rack and let cool completely, at least 1 hour. Cut into 2-inch squares and serve.

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