korean food: It's Not as Difficult as You Think

https://numberfields.asu.edu/NumberFields/show_user.php?userid=6791540

Cover baking sheet with aluminum foil. Evenly coat with spray. Place bread slices on foil-lined sheet. With 2 1/2- to 3-inch round cookie or biscuit cutter or inverted drinking glass, cut out center of every bread slice