homemade oreos

INGREDIENTS

• 1 1/4 cups (155 grams) all-purpose flour
• 1/2 cup (45 grams, but cocoa weights can vary greatly) unsweetened Dutch process cocoa
• 1 teaspoon baking soda
• 1/4 teaspoon baking powder
• 1/4 teaspoon salt
• 1 to 1 1/2 cups (200 to 300 grams) sugar [see recipe note]
• 1/2 cup plus 2 tablespoons (1 1/4 sticks or 140 grams) room-temperature, unsalted butter
• 1 large egg
• 1/4 cup (1/2 stick or 55 grams) room-temperature, unsalted butter
• 1/4 cup (50 grams) vegetable shortening
• 2 cups (240 grams) sifted confectioners’ sugar
• 2 teaspoons (10 ml) vanilla extract