Cheesy Mustard Sauce - cooking recipe

Ingredients

3 tablespoons butter
3 tablespoons all-purpose flour
3 cups chicken stock
2 tablespoons spicy brown mustard (I used Hellman's honey mustard)
2 cups cheddar cheese, shredded

Preparation

Melt the butter in a medium-size saucepot. Add flour, cook 1-2 minutes over moderate heat, then whisk in the chicken stock and mustard.
When the stock comes to a bubble and starts to thicken, stir in the cheese with a wooden spoon.
Remove from the heat and serve.