2 teaspoons onion
2 teaspoons melted butter
3 teaspoons flour
1/4 teaspoon pepper
2 cusp milk
1 cup grated Cheddar cheese
5 chicken bouillon cubes
1 1/2 cups boiling water
1 (10 ounce) package frozen broccoli*

* Or use fresh broccoli 

Cook onion in butter until tender. Blend in flour and pepper; add milk. Cook over medium heat until thickened. Add cheese.

In another pan, dissolve bouillon cubes in boiling water. Add broccoli. Cook until tender. Add to cheese mixture; blend.