Homemade Double Chocolate Sandwich Cookies Recipe

Ingredients

• 1 cup all-purpose flour (125 grams)
• 2/3 cup cocoa powder (60 grams)
• 1/2 teaspoon baking powder
• 1/4 teaspoon salt
• 10 tablespoons unsalted butter (140 grams), softened
• 2/3 cup brown sugar (140 grams)
• 1/3 cup granulated sugar (67 grams)
• 1 large egg, room temperature
• 1 teaspoon vanilla extract
• 3/4 cup chocolate chips (135 grams)
• 1/2 cup unsalted butter (112 grams), softened
• 1-2 cups powdered sugar (110-220 grams), sifted
• 1/4 cup cocoa powder (23 grams), sifted
• 1-3 tablespoons whipping cream (15-45 ml) or milk