category: [side]
Cook and drain macaroni. Put a layer of macaroni in baking dish, then a layer of cheese. Put one pat of butter in each corner of dish and the center. Repeat layers: macaroni, cheese, then butter. Beat egg and add milk. Pour over macaroni and cheese. (Maybe add a tiny bit more milk here, but not too much or it will be really runny.) Bake uncovered at 350 for 30 minutes.
from great-great-grandmother Parkinson, so I am told