Step 1

In a large pot of salted boiling water, cook the potatoes until they are fork-tender, about 20 minutes.

Step 2

Preheat the oven to 375 degrees F.

Step 3

In a skillet over medium-high heat, cook the bacon until crisp, about 8-10 minutes.

Step 4

Drain the bacon on paper towels.

Step 5

Once the bacon is cooled, crumble the slices.

Step 6

Drain the potatoes and add them to a 9x13-inch casserole dish.

Step 7

Pour the melted butter over the potatoes and season them with the salt and the pepper.

Step 8

Top the potatoes with the shredded cheese, the crumbled bacon, and the chives.

Step 9

Bake until the cheese is melted, about 5 minutes.

Step 10

Serve garnished with the extra chives and the sour cream.