into the butter.
pour in the milk and whisk so there’s no lumps of butter and flour.
bring to a boil and add the cream cheese, breaking it up a little with the wooden spoon.
simmer the mixture, stirring constantly until the cream cheese is completely melted and combined with the milk.
add the grated cheese and stir again until well combined.
add the chili powder, salt, and pepper and simmer until the sauce is thick enough to coat the wooden spoon.
turn off the heat and stir in the chopped ham and green onions.
pour half the sauce over the potatoes.
add another layer of potatoes and pour the remaining sauce over the top.
cover the pan with 