World’s Best Cookies
1 cup all-purpose flour (120g) ½ teaspoon baking powder ½ teaspoon baking soda ½ teaspoon salt ½ cup unsalted butter softened (113g) ½ cup sugar (100g) ½ cup packed light brown sugar (110g) 1 large egg ½ teaspoon vanilla extract 1/2 cup corn flake cereal (20g) 1/2 cup oats (40g) 1/2 cup chocolate chips or sweetened coconut flakes 1/2 cup chopped nuts (peanuts, walnuts, or pecans) (56g) Preheat the oven to 350°F. Line large baking sheets with parchment paper. In a medium bowl, whisk together the flour, baking powder, baking soda, and salt. In a large mixing bowl or the bowl of a stand mixer fitted with the paddle attachment, beat the butter and sugars on medium speed until light and fluffy, about 3 minutes. Add the egg and vanilla and beat well, stopping as needed to scrape down the s...