Bakery Style Snickerdoodles

Ingredients

• 1¼ cups all-purpose flour (spooned and leveled)
• 3/4 cup cake flour (spooned and leveled)
• 1 tsp. cornstarch
• 1 tsp. ground cinnamon
• 1 tsp. cream of tartar (optional but gives snickerdoodle vibes)
• 1/2 tsp. baking powder
• 1/2 tsp. baking soda
• 1/2 tsp. salt
• 1/2 cup unsalted butter (cold, cubed)
• 1/2 cup packed brown sugar (light or dark)
• 1/4 cup granulated white sugar
• 1 large egg (room temperature)
• 1 large egg yolk (room temperature)
• 1 tsp. vanilla extract
• 2 cups white chocolate chips
• 2 Tbsp. granulated white sugar
• 1/2 tsp. ground cinnamon