how to cook ears of corn in a microwave
1 Place 1 to 4 ears of corn in the microwave: Arrange 1 to 4 ears of corn, un-shucked, in the microwave. 2  If you prefer, you can set them on a microwaveable plate or tray. 3  If you need to cook more than 4 ears of corn, cook them in batches. 4  Microwave for 3 to 5 minutes: For just 1 or 2 ears of corn, microwave for 3 minutes. If you prefer, you can set them on a microwaveable plate or tray. 2  If you need to cook more than 4 ears of corn, cook them in batches. 3  Microwave for 3 to 5 minutes: For just 1 or 2 ears of corn, microwave for 3 minutes. 4  For 3 or 4 ears, microwave for 4 minutes.