Do not buy ready-made minced meat for this dish and do not even twist the fillet in a meat grinder. Only when using lean fillets, which you chop with a knife, mixed with oil, will you get the right result: the lula will be tender and retain all the juice.
Soak the skewers in cold water for 1 hour. This is necessary so that the skewers do not burn during baking and the meat does not stick to them.
Finely chop the turkey fillet, then chop with a heavy knife or cleaver into coarse minced meat. Chop the onion.
Soften the butter. Mix minced turkey fillet with onions. Add eggs and butter. Salt, pepper and stir until smooth. Place mince in refrigerator for 30 minutes.
Wetting your hands in hot water, wrap the skewers with the resulting minced meat in the form of small elongated cutlets. Put the skewers from the cradle onto a baking sheet and place in an oven preheated to 180 ° C (you can additionally turn on the “grill” mode in the oven). Bake until golden brown, 20 minutes, flipping a couple of times.
Serve with chopped onion rings drizzled with vinegar and olive oil.