Place a large saute pan over medium high heat. Add the bacon. Saute until slightly crispy.
Next add the onions. Saute until translucent. Drain fat. Deglaze with the apple cider vinegar.
Next add the brown sugar, stir to combine. Add the bay leaves and simmer for 15 minutes or until thickened.
Remove from heat and cool.
This is the perfect topping for pimento cheese.