• Handful of finely chopped prunes
• Small onion finely chopped
• Salt, pepper, etc (e.g. thyme)
• Broth (a cup or so)
• Balsamic (a few tbsp)
• Pan grease

Saute onions in pan grease, season. Once transparent, add balsamic, then prunes, stir. Then add broth and let it reduce by half or so.