Peel and chop the potatoes, peel the parsley root and cut into pieces that are smaller than the potato pieces as they cook longer than the potatoes. Cover a little with water and simmer for 20-30 minutes. Drain and pour through a potato press. Heat the milk and pour over the amount, while beating with a wooden spoon at the same time. Use enough milk to make a fine, homogeneous and not viscous pulp.
Melt the butter carefully, add the finely chopped wild garlic to the hot butter and let it simmer for a few seconds. Let the butter cool down a little and fold into the puree.
Only now carefully season with salt and possibly pepper. Briefly whip the puree with a normal whisk (no hand mixer or similar)
The very aromatic puree goes well with tuna and lamb steaks fried neutrally in olive oil.