Ingredients per person:
2 oz yellow split peas ( 1/2 cup or 60 grams )
1 egg yolk
1/2 oz butter
Salt and pepper to taste
Soak the split peas overnight in water, and then drain.
Cover the peas with fresh water and simmer gently for 2 hours ( add more water if needed), or cook in a pressure cooker for 20 minutes under high pressure.
The peas at this stage should be soft but not a paste. Drain the peas and place in a food processor. Add the egg yolk and butter plus salt and pepper and process into a puree.
Transfer the puree to a bowl for steaming, steam for a further 40 minutes, or place in a baking tray and bake in low heat for 40 minutes.