Depends on the variety of honey you have but 3 lbs of honey + nutrients + tannin and water to make 1 gallon will produce a pleasant enough mead. Depending on the yeast you use that could be brut dry and that might be too dry for your taste, so you might hold back a quarter to a half pound of honey to back sweeten the mead (tho you would need to stabilize this before you add any more honey).
If you are looking for a more fruit forward mead (melomel) you would use the honey with any fruit you might otherwise add sugar to to increase the starting gravity. Could use mixed berries, mango, apple juice, pineapple, even lemon juice (skeeter pee) BUT generally (not lemon) fruit juice is likely to have a starting gravity of about 1.050 (plus or minus) so you want to add about 1 lb of honey to make a gallon of must when you use fruit juice.
Honey flows better when it is warm (Don't boil it despite the nonsense you find online). And honey has absolutely no nutrients for the yeast so if you are making a traditional mead (only honey and water) you want to add nutrient (Fermaid O or Fermaid K are good choices but Wyeast makes beer and wine nutrient and I use these all the time).
Good luck.
