Ingredients
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1 1/4 cups semi-sweet chocolate chips (about 7 1/2 ounces)
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12 tablespoons unsalted butter (1 1/2 sticks)
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1 1/2 cups granulated sugar
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3 large eggs (room temperature)
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1 1/2 teaspoons vanilla extract
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1 teaspoon kosher salt
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1 cup all-purpose flour
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1 teaspoon baking powder
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2 cups packed mini marshmallows
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1 1/2 cups roasted salted almonds (coarsely chopped)
Instructions
- Heat the oven to 350°F; coat a 13-by-9-inch baking dish with butter; set aside.
- Combine 3/4 cup of the chocolate chips and all the butter in a small saucepan.
- Cook over low heat, stirring constantly, until melted, about 8 minutes. Remove from heat and let cool slightly.
- Whisk sugar, eggs, vanilla, and salt in a large bowl until eggs are broken up and smooth.
- Add chocolate mixture and stir to combine; add flour and baking powder and stir until just incorporated.
- Add 3/4 cup of the marshmallows and 3/4 cup of the almonds and stir to combine.
- Transfer batter to the prepared dish and spread evenly.
- Bake until a toothpick inserted in the center comes out mostly clean, about 25 to 30 minutes; remove from the oven.
- Move the rack to the top of the oven.
- Sprinkle remaining chocolate chips, marshmallows, and nuts over the surface of the batter.
- Return to the oven and continue baking until marshmallows are puffed and golden brown, about 10 minutes more.
- Remove from the oven and cool completely on a wire rack before cutting.