Barb,
Homeopathic medicine should not be put in food or anything except water. It is also to to be used 15 minutes before a meal or 1 hr after a full meal unless in an emergency situation like the use of Arnica/Hypericum or Apis.
The remedy can be put directly in the mouth, under the tongue, where it is absorbed rapidly, or disolved and stirred in a small glass of water.