In the United States, where I grew up, crab cakes are ubiquitous on menus ... mayonnaise and 60g of dried breadcrumbs. Add a good pinch of salt and black pepper and stir until evenly combined.

If your sauce is too thick, add water to thin, about a teaspoon at a time. Poach the eggs in simmering water. Place one crab cake on each plate, top with poached egg, then sauce.