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Grilled Kielbasa Recipe with Caramelised Onions Kids Love Every Week

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A quick and kid-approved grilled kielbasa recipe featuring smoky sausage paired with sweet, slow-cooked caramelised onions. Perfect for busy weeknights or casual cookouts.

Ingredients

Scale
  • 1 pound kielbasa sausage (smoked preferred)
  • 1 tablespoon olive oil (for sausage)
  • 2 large yellow onions (about 300g or 10.5 oz), thinly sliced
  • 2 tablespoons unsalted butter (28g or 1 oz)
  • 1 tablespoon olive oil (for onions)
  • 1 teaspoon sugar (optional)
  • ½ teaspoon salt
  • Black pepper to taste
  • Optional extras: spicy brown mustard, fresh bread or buns, pickles or sauerkraut

Instructions

  1. Preheat your grill or grill pan for 5 minutes on medium-high heat. Clean and oil grates if using an outdoor grill.
  2. Peel and slice the onions thinly (about ¼ inch thick) for even cooking.
  3. Heat butter and olive oil in a large skillet over medium-low heat. Add sliced onions and salt, stirring to coat. Cook low and slow, stirring every few minutes to prevent burning.
  4. After about 10 minutes, sprinkle in optional sugar to boost caramelization. Continue cooking until onions are deep golden brown and fragrant, about 20-25 minutes total. Add a splash of water if onions start sticking.
  5. While onions cook, pat kielbasa dry and brush lightly with olive oil.
  6. Grill kielbasa for 8-10 minutes, turning every 2-3 minutes until casing is crisp and browned and internal temperature reaches 160°F (71°C).
  7. Remove kielbasa from grill and let rest for 5 minutes to lock in juices.
  8. Slice kielbasa into thick rounds or serve whole. Pile caramelised onions on top and add optional mustard, pickles, or serve in buns for sandwiches.

Notes

[‘Keep heat low when caramelising onions to avoid burning and bitterness.’, ‘Do not pierce sausages while grilling to keep them juicy.’, ‘Add a splash of water if onions stick to the pan to loosen browned bits.’, ‘Rest sausages after grilling to redistribute juices.’, ‘Caramelised onions can be made ahead and stored in the fridge or frozen for later use.’, ‘If no grill is available, cook kielbasa in a skillet or bake at 375°F for 20-25 minutes, finishing under the broiler for browning.’]

Nutrition

Keywords: grilled kielbasa, caramelised onions, kid-friendly dinner, quick dinner, sausage recipe, easy grilling, family meal