Step 2

Arrange the potatoes in a single layer in a medium-size microwave-safe container. Microwave on high until the potatoes are easily pierced with a fork, 7 to 9 minutes.

Step 3

Immediately mash the hot potatoes with a potato masher over the microwave-safe dish.

Step 4

Pour the half-and-half over the potatoes and dollop butter on the surface. Return the potatoes to the microwave and heat for 1 minute. Stir well to combine. Return to the microwave and heat for 1 minute more. Season well with salt and pepper.

Step 5

If making ahead, cover tightly with plastic wrap and store in the refrigerator for up to one day. Right before serving, microwave on high until warmed through. Garnish with chives.