• Servings 2 lbs
  • Prep 10 min
  • Cook 60 min
  • Cuisine
  • Skill Level

Caramelized Onions


  • 2 lbs yellow onions
  • 2 tsp kosher salt
  • 3 tbs sugar
  • 4 tbs unsalted butter
  • 1 tbs balsamic vinegar

  • Halve the onions and remove the tough outer layers, then cut the onion halves into thin slices.
  • Place the onion slices in a plastic bowl, sprinkle with salt, sugar and balsamic vinegar and toss.
  • Set aside for 15 minutes.
  • Melt the butter over medium heat in a large cast iron skillet or saute pan.
  • Add the onion. Reserve any liquid left in the bowl.
  • Cook over medium heat watching closely, stirring and tossing often with a spatula until the first browning is visible.
  • Reduce the heat and add the liquid from the bowl.
  • For the best result, reduce the heat to the lowest possible setting, cover the pot and cook for 1 hour or more, stirring every 10 minutes or so.

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