Caramelized Onion Filling
 
Ingredients
Filling:
  • 4 large sweet onions (such as Spanish or Vidalia), thinly sliced lengthwise, or diced
  • 2 sprigs fresh thyme
  • 1 tablespoon balsamic vinegar
  • 1 tablespoon brown sugar
  • 2 tablespoons olive oil
  • 2 teaspoons Kosher salt
  • black pepper, to taste
Topping:
  • Sliced raw onion
Instructions
  1. In a large skillet, heat oil over medium heat. Add onions, salt, and thyme, and allow to sweat for 10-15 minutes, stirring every minute or so to allow all the onions to reach the heat and break down.
  2. Once onions have released most of their moisture, the natural sugar in the onions will begin to caramelize and they will slowly start to brown. Reduce heat to low and keep stirring often for an additional 15-20 minutes, until they turn a deep golden color and become almost sticky.
  3. Add vinegar and brown sugar and allow vinegar to evaporate and sugar to melt into the onions. Season with black pepper and additional salt if desired. Set aside to cool.
Recipe by Between Carpools at https://betweencarpools.com/new-must-make-purim-challah-taschen/