This is a typical Dutch soup. It might not have originated in the Netherlands, but we do have some odd traditions around the dish. On new years day, we have the beach dive (Polar bear plunge) where hundreds of people run in their swimming trunks (or just with clothes on) into the sea. Afterwards they get treated on split pea soup filled with smoked sausage. We love split pea soup in the winter as a full meal, as it is quite filling.
I painted this on 220 gm/m3 paper pad which works better than the Moleskine watercolor sketchbook, as it can be fixated with tape to prevent the warping.