first put in a saucepan the butter, both garlics, and onion turn stove on between medium and low

Pour about a cup of milk into your pan and stir in some cheese until it melts add more milk and cheese until all 4 cups of cheese is melted : stir often

the amount of garlic in this recipe is best for a thick sauce with just enough milk to melt the cheese so if you like yours less thick I suggest a little more garlic