Île des Pingouins eroded by the sea, steep-sided, 4 km long and 1 km wide. Its surrounding coastal cliffs vary from 50 m to 300 m in height, making it virtually inaccessible by sea and rarely visited. It is free of introduced species, so has a relatively pristine biota compared with the other islands in the archipelago. At least 29 bird species breed on the island, which has been identified by BirdLife International as an Important Bird Area (IBA). It has an exceptionally high density of seabirds, including a million pairs of macaroni penguins, 300 pairs of black-browed albatrosses, four pairs of Salvin's
Macaroni and cheese microwave cook the pasta in the sauce. Another popular variant is jarred macaroni cheese sauce, which is especially popular in the UK and US, available under the Dolmio and Ragú brands, among others. The pasta is purchased and prepared separately, then mixed with the heated cheese sauce. Powdered cheese sauce, very similar to what is found inside a box of macaroni and cheese mix, is also sold separately without the pasta. This product is produced by several companies, most notably Bisto, Cabot, Annies and Kraft. A number of different products on the market use this basic formulation with minor variations