Prepare the ham by carefully cutting and peeling the skin off the top of the ham (do not remove the fat underneath). Score the top of the ham cutting approximately 1cm into the fat.
Mix together the KEEN’S Mustard Powder, maple syrup and black pepper to form a paste and brush half of the mixture onto the top of the ham. Cover ham with foil and bake for 30 minutes.
Baste the ham with mustard paste every 30 minutes for remaining hour and half of cooking time. Remove the foil cover for the final 30 minutes of cooking, and let the ham rest for 15 minutes before slicing.
Serve with baked cherry tomatoes and garnish with rosemary.