Step 1

Place potatoes in a large saucepan and cover with water. Bring to a boil, reduce heat and cook until tender, about 10 minutes.

Step 2

While potatoes are cooking place buttermilk and milk into a small saucepan and cook over a very low heat until just warm. Be careful not to boil or milk will curdle.

Step 3

Drain the potatoes, add the warmed milk and mash together to desired consistency. Stir in cheese and salt. Top with the butter and let it melt.