Oreo Cookie Extravaganza | DishGen Recipe

Ingredients

• 1 1/4 cups all-purpose flour
• 1/2 cup unsweetened cocoa powder
• 1/2 teaspoon baking soda
• 1/4 teaspoon baking powder
• 1/4 teaspoon salt
• 1/2 cup unsalted butter, softened
• 1 cup granulated sugar
• 1 large egg
• 1 teaspoon pure vanilla extract
• 2 cups powdered sugar
• 1/4 cup vegetable shortening
• 1 teaspoon vanilla extract (for filling)