Macaroni penguin is a shallow scrape in the ground which may be lined with some pebbles, stones, or grass, or nestled in a clump of tussock grass (on South Georgia Island). Nests are densely packed, ranging from around 66 cm apart in the middle of a colony to 86 cm at the edges. A fertile macaroni penguin will lay two eggs each breeding season. The first egg to be laid weighs , 61–64% the size of the second, and is extremely unlikely to survive. The two eggs together weigh 4.8% of the mother's body weight; the composition of an egg is 20%
Macaroni and cheese also becoming popularized at this time and was likely also used during that era. Macaroni and cheese is very popular in modern-day Canada. Kraft Dinner is the most popular brand of packaged macaroni and cheese. Sasha Chapman, writing in "The Walrus", considered it to be Canada's national dish, ahead of poutine. Pasta other than macaroni noodles are often used: most any short-cut extruded pasta and many of the decorative cut pasta will do, particularly those with folds and pockets to hold the cheese. The dish may still be referred to as "macaroni and cheese" when made with a different pasta;