Mostarda di Cremona isn't actually a mustard, rather it's summer fruits preserved in mustard-infused syrup. Use a mix of peaches, pears, plums, apricots, nectarines, quince, cherries, citrus rind. Makes for a beautiful holiday gift.
Vanilla is a dominant flavor in this jam, that meshes perfectly with the sweet tang of the black plums. The fresh Mint assists in a slight menthol cooling effect, but doesn’t overpower the flavor palate.