Chunky Cheese Macaroni
["1 lb. elbow macaroni", "3 qt. boiling water", "1 Tbsp. salt", "6 Tbsp. margarine", "3 Tbsp. flour", "1 1/2 tsp. salt", "1 1/2 tsp. chili powder", "1/2 tsp. pepper", "3 c. milk", "2 Tbsp. minced onion", "1/2 c. grated American cheese", "2 canned pimientos, sliced", "1 1/2 c. pitted ripe olives, halved", "2 c. cubed American cheese"]
["Cook the elbow macaroni in the boiling salted water in a large kettle until tender (13 minutes).", "Drain."]
["elbow macaroni", "boiling water", "salt", "margarine", "flour", "salt", "chili powder", "pepper", "milk", "onion", "American cheese", "pimientos", "olives", "American cheese"]