Perfect oven baked potatoes in just 4 minutes with Potato Cooke. Potato Cooke is the fastest, easiest way to cook perfect oven baked potatoes in the microwave. The secret is the unique insulation design that creates a steam pocket to give your potato just the right amount of moisture; you will have a tender skin and a delicious, fluffy inside every time. Potato Cooke works on any type of potatoes: white, red, sweet, yams and more. Holds up to 4 large potatoes. Reusable and machine washable. Potato Cooke is great for potato skin, potato salad, homes fries, mashed potatoes or any of your favorite style potato.