Preheat oven to 350

Poke potatoes with a fork, and season with salt, pepper, and olive oil.

Bake potatoes for about an hour and a half until tender.

Remove potatoes from the oven and remove the skin.

Mash the potatoes with the butter, cheese, milk, and sour cream.

Meanwhile, put the taco boats into the oven upside down to cook for 10 minutes.

Pull the boats from the oven and flip them right side up.

Divide the potato mixture between the taco boats being careful not to overfill.

Return the filled taco boats to the oven and bake for 20 minutes.

Meanwhile, cook the bacon in a frying pan until crispy, and chip the chives.

Remove the taco boats from the oven and place them on a serving dish. Top with the bacon and chives, and serve with extra sour cream if desired.