Double Chocolate Crinkle Cookies

Bahan-bahan (20 porsi)

• 1/2 cup (8 Tbsp; 113g) unsalted butter, softened to room temperature
• 1/2 cup (100g) granulated sugar
• 1/2 cup (100g) packed light or dark brown sugar
• 1 large egg, at room temperature
• 1 teaspoon pure vanilla extract
• 1 cup (125g) all-purpose flour (spooned & leveled)
• 1/2 cup + 2 Tablespoons (51g) unsweetened natural cocoa powder
• 1 teaspoon baking soda
• 1/8 teaspoon salt
• 1 cup (180g) mini or regular size semi-sweet chocolate chips
• 3 Tablespoons (35g) granulated sugar
• 1 cup (120g) confectioners’ sugar, for rolling