Pumpkin Snickerdoodle Cookies

Ingredients

• 1/2 cup 100% pumpkin puree (blotted to 1/3 cup)
• 1 cup unsalted butter (melted and slightly cooled)
• 1 cup dark brown sugar (packed)
• 1 cup granulated sugar
• 1 large egg (room temperature)
• 1 large egg yolk (room temperature)
• 1 Tbsp. vanilla extract
• 2 3/4 cups all-purpose flour (spooned and leveled)
• 1 Tbsp. pumpkin pie spice
• Pinch of cinnamon (optional for extra cinnamon-y goodness)
• 1 tsp. baking soda
• 1 tsp. fine salt
• ½ tsp cream of tartar
• 1 cup white chocolate chips (plus more for garnishing the tops)
• ¼ cup granulated sugar
• ¾ tsp. pumpkin pie spice (or cinnamon)