INGREDIENTS
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4 ounces semisweet chocolate, roughly chopped
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2 tablespoons unsalted butter
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1/2 cup plain flour
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1/2 teaspoon baking powder
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1/4 teaspoon fine salt
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1 egg
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1/3 cup lightly packed dark brown sugar
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1/2 tsp. vanilla extract
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1/3 cup toffee bits
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a few pinches sea salt