Smokey Corn Chowder

1/2 c. chopped yellow onion
4 tbs. butter
1/4 c. flour
1 1/4 tsp. salt
1/4 tsp. pepper
4 c. milk
2 can whole-kernel corn (drained)
14 oz pkg kielbasa

Saute onion in butter until tender but now brown. Stir in flour, salt and pepper. Add milk and bring to a boil stiring constantly until thick and bubbly, about 1 minute. Stir in corn and sausage. Reduce heat, simmer approximately 10 minutes.