Step 1

Preheat oven to 400.

Step 2

Scrub potatoes and pat dry. Prick a couple of times with a fork and place on a foil lined baking sheet. Bake the potatoes for about 1 hour 20 minutes, until soft when pierced with a fork. Set aside until cool enough to handle. Maintain oven temperature.

Step 3

Remove potato flesh from skins and place flesh in a mixer bowl. (Either discard skins or use them to make potato skins!)

Step 4

Add the butter and mash potatoes with an electric mixer. Add the milk, half-n-half, Greek yogurt, salt, pepper, onion, and 1 cup of the cheddar cheese and continue beating with the mixer until well mixed and creamy. Transfer potatoes to a lightly greased baking dish. Sprinkle on the remaining cheddar cheese.

Step 5

Bake for 35-40 minutes, until potatoes are hot and cheese is melted. Garnish with chopped green onions and serve.