Brown Butter Snickerdoodles with White Chocolate

Instructions

• Melt butter for cookies in a saucepan over medium-low heat. Cook, stirring often, until the milk solids turn golden brown and the butter smells nutty, 10 to 12 minutes. Pour butter and any browned bits into a small bowl.
• Place in the refrigerator until butter resolidifies but is still soft, 1 1/2 to 2 hours.
• Preheat the oven to 375 degrees F (190 degrees C). Line a baking sheet with parchment paper.
• Remove brown butter from the refrigerator and place in a large mixing bowl. Add cream cheese and beat with an electric mixer until fluffy, about 5 minutes. Add white and brown sugars; beat until combined and fluffy, 3 to 4 minutes more. Mix in egg, egg yolk, and vanilla extract at medium speed until incorporated.
• Whisk flour, cream of tartar, cinnamon, baking soda, and salt together in a separate bowl. Gradually add flour mixture to the butter mixture, beating until just combined, and adding chocolate in with the last bit of flour.
• Whisk sugar and cinnamon for coating together in a shallow dish.
• Scoop cookie dough into 1 1/2- to 2-tablespoon portions and roll each into a ball. Roll each ball in the coating and arrange 3 inches apart on the prepared baking sheet.
• Bake in the preheated oven until set, 8 to 10 minutes. Cool on the baking sheet for 10 minutes, then transfer to a wire rack to cool completely.