INGREDIENTS
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Ingredients
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•For the Cookie Base:
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•1½ cups (7.5 oz) all purpose flour
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•1 tsp baking powder
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•½ tsp salt
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•1½ cups packed (10.5 oz) light brown sugar
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•12 Tb unsalted butter, melted and cooled
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•2 large eggs
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•1½ tsp vanilla extract
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•1 (12 oz) bag semisweet chocolate chips
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•1 package Oreo Cookies
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•For the Brownie Layer:
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•⅓ cup Dutch-processed cocoa
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•1½ teaspoons instant espresso (optional)
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•½ cup plus 2 tablespoons boiling water
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•2 ounces unsweetened chocolate, finely chopped
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•4 tablespoons (1/2 stick) unsalted butter, melted
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•½ cup plus 2 tablespoons vegetable oil
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•2 large eggs
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•2 large egg yolks
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•2 teaspoons vanilla extract
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•2½ cups (17½ ounces) sugar
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•1¾ cups (8¾ ounces) unbleached all-purpose flour
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•¾ teaspoon table salt