Mince the garlic and red onion, and fry in a frying pan with olive oil until the onion is translucent. Add the creme fraiche, and simmer for about 5 minutes.
4
Take the pan off the heat and grated parmesan, lemon juice, finely chopped dill and shrimp.
5
Pour out the water from the spaghetti and fold in the creamy shrimp sauce.