Chop the onion, dice the ham and finely chop the wild garlic.
Heat the butter in a non-stick pan, sauté the onion or shallot. Sweat the ham briefly, then dust with flour and deglaze with water. Let it boil down briefly, add milk and let the sauce simmer for at least 5 minutes.
Cook the pasta until just under al dente.
Then mix with the sauce, let simmer for about 1 minute. Stir in wild garlic and sour cream or sour cream and season with salt and pepper.