Shashlik Marinade Recipe: BBQ Skewers with Onion

Shashlik is grilled meat on skewers, found in many forms across Russia, the Caucasus and Central Asia. This is a practical onion marinade for pork or lamb inspired by those traditions. Onion adds flavour and moisture to the marinade; tenderness also depends on the cut, marinating time and cooking. There is no single recipe for every region.

The role of onion and acid

Onion provides the flavour base here. Research into onion marinades has found effects on texture and juiciness in some conditions, but this does not guarantee the result of this recipe or establish that onion works in the same way as Asian pear.

Optional vinegar adds acidity and flavour. More acid or longer marinating does not automatically tenderise meat; it may also affect the exterior texture unfavourably. Mineral water adds liquid but is not a guaranteed tenderiser. Choose meat suitable for relatively quick grilling.

Ingredients for 1 kg of meat

  • 1 kg pork or lamb, cut into even 3–4 cm cubes
  • 3–4 large onions, grated or very finely chopped
  • 1 tsp salt
  • 1 tsp coarsely ground black pepper
  • 1 tsp ground coriander
  • ½ tsp paprika
  • 2 bay leaves
  • Optional: 2 tbsp apple cider vinegar or red wine vinegar
  • Optional: 50 ml mineral water

Marinating and preparing safely in the fridge

  1. Mix the onion, spices, bay leaves and optional vinegar or mineral water in a clean, food-safe bowl. Toss the meat through it so every piece is coated.
  2. Cover and marinate in the refrigerator. For this pork or lamb version, you might plan four hours; overnight for 8–12 hours is another option if the use-by date and storage instructions allow it. These are recipe choices, not compulsory minimum times or storage guarantees.
  3. More than 24 hours does not automatically make the meat too soft because of the onion. The effect depends on the meat, acid, quantity and time, among other things. Do not exceed the use-by date or marinate longer in pursuit of guaranteed tenderness.
  4. Drain excess marinade and remove loose onion pulp that could burn quickly. Remove the bay leaves. Thread the meat onto suitable metal skewers without compressing the cubes tightly together. Do not wash raw meat.

Grilling on a mangal or BBQ

A mangal is a tray with skewers resting above the coals. Radiant heat from the coals is one part of the cooking; heat is not automatically equal on all sides. An ordinary BBQ with a suitable setup can work too. Use charcoal equipment outdoors only.

Grill over a stable bed of glowing coals, not tall flames. Provide a cooler area where you can move the skewers. Dripping fat can cause flare-ups on a mangal too.

Use flat or twisted metal skewers that make turning easier. Turn regularly, for example every 2–3 minutes, but respond primarily to browning and heat. Closely packing the cubes does not automatically prevent drying.

Cooking times such as 12–15 minutes for pork and 10–12 minutes for lamb or chicken are estimates at most, not doneness criteria. Thickness, type of meat, distance from the coals and heat can change cooking time substantially. Do not routinely fan with cardboard: it can raise the heat and stir up ash and sparks.

Checking doneness with a thermometer

Use a suitable thin food thermometer in the centre of several of the largest cubes without touching the metal skewer. A browned exterior, meat colour or the clock alone does not prove the centre is sufficiently cooked.

For cubes cut from whole cuts of pork or lamb, the USDA guideline of at least 63°C (145°F), followed by at least three minutes of resting, can serve as a safety reference. It does not guarantee the desired tenderness; choose an appropriate cut. Ground, stuffed or otherwise processed products require appropriate separate instructions.

For a chicken variation, check for at least 74°C (165°F) in the centre. Preferably marinate and grill different meats separately so each can be cooked appropriately. A shorter chicken marinating time, such as 2–4 hours, says nothing about the required doneness.

Variations without rigid national formulas

  • Georgian-inspired: mtsvadi has many forms. Pork is common; wine, pomegranate, onion and other flavourings appear in different preparations. It is not exclusively one marinade of pomegranate juice, onion and salt.
  • Other flavour directions: red wine, sumac, coriander, pomegranate vinegar, turmeric or kefir can appear in different family and regional recipes. Treat them as inspiration, not fixed ingredient lists for all of Armenia, Azerbaijan or Russia.
  • Chicken: can be prepared with an appropriate onion marinade or, for example, tomato paste. Choose a recipe that adjusts the ingredients and time to chicken, and follow the separate internal-temperature check.

Side dishes and safe serving

Serve with lavash, fresh parsley, coriander or dill, separately sliced raw onion and grilled tomatoes or peppers. Prepare these sides with clean equipment, separately from raw meat and used marinade.

Adjika is a spicy condiment made with ingredients such as chilli, garlic and spices. Formulas vary; tomato is not essential.

Put cooked skewers on a clean platter and use clean serving utensils. Do not use marinade that has touched raw meat as an untreated sauce. Reserve a clean portion before marinating, or first bring used marinade to a thorough boil for a few minutes.

More marinades and BBQ cultures