Use this shortcut for cooking eggs. If you need hard-cooked eggs for a salad, you can save time by cooking the eggs in a microwave oven. Break each egg into a custard cup or small glass bowl. Gently prick the yolk with a wooden pick or the tip of a knife. Cover the bowl loosely with plastic wrap and microwave at MEDIUM 1 to 1-1/2 minutes or until the yolks are firm. Let the eggs cool completely before chopping them.