Soft & Chewy Chocolate Snickerdoodles

Bahan-bahan (28 porsi)

• 2 and 2/3 cups (333g) all-purpose flour (spooned & leveled)
• 1/2 cup (43g) unsweetened natural cocoa powder
• 1 teaspoon cream of tartar
• 1 teaspoon baking soda
• 1/2 teaspoon ground cinnamon
• 1/2 teaspoon salt
• 1 cup (16 Tbsp; 226g) unsalted butter, softened to room temperature
• 1 cup (200g) granulated sugar
• 1/2 cup (100g) packed light or dark brown sugar
• 2 large eggs, at room temperature
• 1 teaspoon pure vanilla extract
• 1/3 cup (70g) granulated sugar
• 1 teaspoon ground cinnamon