Heat oil in a small saucepan. Add the shallot and garlic; cook over moderate heat, stirring, until softened, about 3 minutes. Add the jam, vinegar, miso, mustard, water, and Port. Bring to a simmer,k stirring until all of the water and Pork have been reduced and all you have is a thick jam – 3 to 5 minutes. Season with salt and pepper. Cool. Stir in
a a tablepoon water if too thick.