Balsamic Onion Jam / aka Crack for your Crackers

2 Tablespoons unsalted butter
2 Tablespoons EVOO
2 large sweet onions rough chopped
½ teaspoon kosher salt
½ cup balsamic vinegar
½ cup light brown sugar
¼ cup brown raisins

In a large skillet over medium high heat warm butter and EVOO.  Add onions and salt and cook until starting to brown (about 10 mins). Stirring frequently to avoid burning. Reduce heat to medium low and add remaining ingredients. Cook until jam like consistency and liquid is almost evaporated (about 20 mins). Remove from heat and cool to room temp. It will thicken as it cools, so be sure and take off heat BEFORE you think you need to, it will continue cooking even after removed from heat. This can be made up to two days ahead and should be stored in the fridge, but served at room temp.
 
Serve on toast w/cream cheese, smother a nice steak, or use it as a sandwich spread. Be careful though, this stuff is highly addictive!