Confetti Cookies

Name: Confetti Cookies
Cook time: 2 h 15 min
Total time: 2 h 15 min
Cuisine: American
Ingredients: 2 1/4 cups all-purpose flour (293 grams); 3/4 teaspoon baking soda; 1/4 teaspoon baking powder; 1 tablespoon corn starch; 3/4 teaspoon kosher salt; 1 1/4 cups plus 2 tablespoons granulated sugar (288 grams); 14 tablespoons unsalted butter, melted ( (197 grams)); 1 tablespoon light corn syrup (20 grams); 1 large egg; 2 teaspoons vanilla extract; 1/2-3/4 cup rainbow sprinkles (not nonpareils (about 3-4 ounces))