Finely grind the mustard seeds, in batches. Add the ground mustard seeds, vinegar, and wine to a blender. Peel and finely chop the shallots. Add the shallots, truffle oil, salt, rosemary, and honey to the blender. Blend until a thick paste has formed. Transfer to a bowl, and let rest for 4-6 hours to ferment slightly. Stir occasionally to help promote the fermentation. Transfer the mustard into clean screw-top jars, seal tightly, and let infuse for 3 weeks in a dark, cool place.