Corn Soup

Martina's Soup. They serve this at her school and after several attempts, I have finally come close to what she wants.

2 Tbsp butter
3 Tbsp flour
2 1/2 cups milk (I used skim, but you can use anything)
1/2 cup cheese (any kind)
2 cups frozen corn
Salt and white pepper to taste

Melt butter on stove. When melted, add flour and stir quickly. When absorbed, add milk and stir constantly until mixture starts to thicken. This could take awhile. Then stir in corn, cheese, salt and pepper, and serve.