INGREDIENTS
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1/2 cup all-purpose flour
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2 tablespoons dark or dutch-processed cocoa powder
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1/4 teaspoon baking powder
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1/4 teaspoon salt
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8 ounces dark or semisweet chocolate, chopped
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1/4 cup (1/2 stick) unsalted butter, cut into cubes
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2 large eggs, room temperature
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3/4 cup granulated sugar
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1 teaspoon vanilla extract
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1/2 cup mini semisweet chocolate chips
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For Dipping:
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6 ounces dark or semisweet chocolate, finely chopped
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1 to 2 tablespoons vegetable shortening, as needed
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Rainbow sprinkles