I'm not sure a food giving a speed bonus would be balanced at the moment since I doubt they could make that food wear off when you get enmity from a monster. Back in WoW coffee was used to make you sober, but we don't have alcohol or alcohol effects in 14 so that sort of idea doesn't really work out either haha.

I wouldn't mind a coffee recipe, though, but movement speed boost (except maybe one that would activate while in town) would likely not be added to the game. Totally make one for town, though... aww yeah.