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Balsamic Onion Spread

Ingredients
4 Vidalia Onions, thinly sliced
¼ cup Olive oil
½ tsp Kosher salt
White Wine
1 cup Balsamic vinegar, reduced to ¼ cup (syrup consistency)
Instructions
Toss the onion in olive oil and salt. Slowly caramelize onions in a large saute pan over medium heat until a deep brown in color.
Deglaze the pan when necessary with a splash of white wine. When the onions are caramelized, remove onions from pan. Add reduced balsamic vinegar to the onions and puree together in a blender.
If onions will not blend, add an additional 1 tablespoon of balsamic vinegar of the mixture and puree.