For the baking peas, heat vegetable oil in a large pan to a good 2 cm high. Whisk flour, egg, milk, salt, a pinch of sugar, a little oil to a thick batter.
Drop through a coarse sieve directly into the hot fat and bake quickly. Never drop in too much batter at one time. Lift out, drain on a paper towel and arrange the baked peas in the soup.