Peel and finely dice the garlic and onion. Clean, wash and cut the spring onions into rings. ##Shrimps##, except for the tail fin, peel and remove the intestines.
Wash the shrimps and pat them dry. Heat 2 tablespoons of olive oil in a frying pan, fry half of the prawns for 2-3 minutes while turning. Finally add 1/3 of the garlic, fry briefly. Season the shrimps with salt and pepper, remove and keep warm.
Prepare the remaining prawns in 2 tablespoons of oil in the same way. Keep warm. Add the onion, remaining garlic and ##leek## onions, except for 1 tbsp. for sprinkling, to the frying fat and fry while turning.
Add the tomato paste and sauté briefly. Deglaze with ##tomatoes##, (crush whole tomatoes slightly with a spatula) season with salt, pepper, sugar, lemon juice and paprika.
Bring to the boil, simmer at medium heat for about 5 minutes. Add the prawns. Heat, season again with salt, ##pepper##, paprika and sugar. Arrange on plates or portion plates sprinkled with lemon slices and spring onions.
Tastes great with ##baguette## and ##cream fraiche##