Matcha Sprinkle Snickerdoodles

Ingredients

• 1/2 cup (1 stick) unsalted butter
• 3/4 cup granulated sugar
• 1 large egg
• 1 tsp. vanilla extract
• 1 1/2 Tbsp. matcha powder
• 1 tsp. cream of tartar
• 1/2 tsp. baking soda
• 1/8 tsp. sea salt
• 1 1/3 cups all-purpose flour
• 4 Tbsp. naturally-dyed rainbow sprinkles
• 2 Tbsp. granulated sugar
• 1/2 tsp. ground cinnamon