Honey is a sweet substance made by bees from the nectar in flowers. It is consumed by humans as a foodstuff, and can also be used by wizards as a potion ingredient.
Honey was a known component of
Belch Powder; 2 pounds of honey, in the apothecaries' system of weights, were required ingredients. 
 Home Made Yummy Honey was a type of honey made by Molly Weasley.
Glumbumble has a disastrous effect on honey produced if it infests a beehive.
Behind the scenes
Notes and references
Label Collection book in the box set. Harry Potter Wizard's Collection
↑ The label reads: "
of Mummy, Mastick, Red Myrrhe, Olibanum, Ammoniacum, Oppopanax, Bdelium, each ʒii. Vitriol ℔ii. Honey, ℔ii. Tartar ℥1,ſs. Aquavitæ, gal.iii." which uses the apothecaries' system of weights.
Fantastic Beasts and Where to Find Them ↑
Amazon.com - Harry Potter and the Order of the Phoenix 15th Anniversary Edition