Sugar Cake Recipe for Bees [as a nutritional supplement for extra long, cold winters]. Measure precisely: 7.5 oz. water added to 5 lbs. granulated sugar in large mixing bowl. Add couple drops of food grade essential oils (lemon grass or HoneyB Healthy). Add couple drops of apple cider vinegar. Mix together. Pat 1" thick into bread or cake pans and let dry overnight. Store in airtight container until time to add to hive.