Soft & Thick Snickerdoodles

Bahan-bahan (26 porsi)

• 3 cups (375g) all-purpose flour (spooned & leveled)
• 2 teaspoons cream of tartar*
• 1 teaspoon baking soda
• 1 and 1/2 teaspoons ground cinnamon
• 1/2 teaspoon salt
• 1 cup (16 Tbsp; 226g) unsalted butter, softened to room temperature
• 1 and 1/3 cup (267g) granulated sugar
• 1 large egg + 1 large egg yolk, at room temperature
• 2 teaspoons pure vanilla extract
• 1/3 cup (70g) granulated sugar
• 1 teaspoon ground cinnamon