This jam came about as I pondered ways to create a grilled cheese sandwich that was, well, MORE! The resulting Gourmet Grilled Cheese did not disappoint, in large part due to this component of the sandwich. This is easy to make (and extremely fragrant while cooking), and will add complexity to a grilled cheese, hamburger, grilled chicken, or pork tenderloin sandwich. This is good to have on hand; I have even pureed it and used it as the base for a tangy onion dressing! Use your imagination and definitely try Red Onion Jam.
3 Tablespoons vegetable oil
1 very large red onion, sliced paper thin (about 3 cups)
1/4 cup red wine vinegar
3 Tablespoons maple syrup
3 Tablespoons water
Salt & pepper, to taste
Heat the oil in a medium skillet over medium heat, just until it begins to shimmer. Add the onions and cook over medium low heat, very slowly, until the onions are translucent and very soft, about 20 minutes or more, stirring or tossing often. Do not rush this process, as the onions need to be completely cooked through before they begin to brown. Raise the heat to medium, and cook and stir until the onions begin to color a bit, but do not allow them to become very brown. When the onions are very soft and lightly browned add the vinegar, maple syrup, and water and simmer until the onions are syrupy, but not dry.
Allow to cool at room temperature. Store in the refrigerator.