INGREDIENTS
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1¼ cups all-purpose flour
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1 teaspoon salt
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2 tablespoons dark unsweetened cocoa powder
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11 ounces dark chocolate, coarsely chopped
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1 cup (8 ounces) unsalted butter, softened and cut into 1-inch pieces
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1 teaspoon instant espresso powder
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1½ cups granulated sugar
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½ cup packed light brown sugar
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5 eggs, at room temperature
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2 teaspoons vanilla extract
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1 cup chocolate chips (optional, this is my addition)