Step 1: Cook the macaroni in plenty of salted boiling water.
Step 2: Chop the onion and fry in a pan with a teaspoon of oil.
Step 4: Stir continuously until heated through.
Step 5: Add 3/4 of the cheese (or all of the cheese if you aren’t going to do the optional bit) and stir in until melted.
Step 6: When macaroni is cooked, strain and add to the sauce. Stir round.
Step 8: This is the optional bit. Put it into a cassarole dish and sprinkle on breadcrumbs and grated cheese. Pop in oven for 10 mins.