Alfredo Sauce

Ingredients:
1/4 C butter
1/4 C flour
1 1/2 C half & half
1 1/2 C water
2 cubes chicken bouillon
1 (4 oz) can sliced mushrooms, drained
1/2 C Parmesan cheese, grated

Directions:
Melt butter, stir in flour until well blended. Stir in half & half, water and chicken bouillon cubes. Cook, stirring constantly until sauce thickens. Add other ingredients and heat through. Serve over hot pasta.