Defrost the peas. Clean, wash and cut the leek into rings. Peel and finely chop the onion. Halve the bacon slices once crosswise. Prepare noodles in salted water according to package instructions.
Leave the bacon in a pot until crispy, take it out. Add oil to the bacon fat, heat up. Fry leek and onion in it. Dust with flour and sauté briefly. Gradually add cream and 300 ml water while stirring, bring to the boil, stir in broth.
Let simmer for about 8 minutes. Add the peas after about 5 minutes. Wash parsley, dab dry, put something aside for garnishing, chop the rest finely. Drain the pasta and let it drain. Add bacon and parsley to the sauce and season with salt and pepper.
Serve the pasta with the sauce and sprinkle with parmesan. Garnish with parsley set aside.