Heat oven to 350℉/175℃. Grease 9×13-inch pan with baking spray. In a large bowl, whisk flour, sugar, baking powder, baking soda, and salt. Add butter and cut into mixture until coarse meal forms.
Heat oven to 350℉/175℃. Grease 9×13-inch pan with baking spray. In a large bowl, whisk flour, sugar, baking powder, baking soda, and salt. Add butter and cut into mixture until coarse meal forms.