Cook
broccoli,
drain.
Set
aside.
Saute
onions
in
butter.
Stir
in
flour.
Cook
5
minutes.
Add
milk
slowly,
continually
stirring.
Stir
in
grated
cheese,
blend
until
smooth.
Slowly
blend
in
chicken
broth.
Add
broccoli.
Simmer
at
least
15
minutes,
longer
for
thick
soup.