Cut the potatoes into smaller pieces and bring to a boil in salted water
Boil for 15 minutes, then drain most of the liquid but leave some
Mash together with the butter and milk
Adjust with water to desired consistency
In a food processor mix the onion with the garlic and egg to get the best consistency possible
Mix in the meat, the spices and the breadcrumbs
Roll into small meatballs
Heat a pan with some oil and brown the meatballs in batches from both sides for 3-5 minutes, then remove from the pan
Melt the 4 tbsp of butter and add the flour
Whisk until thick then add the sour cream and milk and the water and mix for 3 minutes
Add the meatballs into the sauce and put the lid on
Braise on medium for 10 minutes
Meanwhile in a pan quickly fry the green peas with some salt for 2 minutes
Serve all together with some fresh black pepper and parsley