Bring a large pot of water to boil. 

When boiling, add a generous amount of salt to the water, add the potatoes. 

Cook potatoes until fork tender. 

Do not overcook them.

Drain them and return them to the hot pot or another bowl. 

Add butter, some salt and pepper, and 4 of the garlic cloves and begin to mash them with either an electric mixer or hand-masher. 

Add some milk, a bit at a time, resume mashing. 

Taste for garlic, salt and pepper. 

If needed add more garlic, salt, pepper, and milk. 

Add the cheese.  Mix well.

Serve with your favorite entrée.