I always like fun and interesting new magic for the game, things the players least expect. I had some notes on magical food concoctions in my notes, and remembered them while reading about the Chef class in an old issue of Polyhedron magazine. I decided to type up my notes, and convert some of the Chef magic stuff from AD&D to Classic D&D, here's what i came up with.
Miija's Gingersnaps (75 gp for 6 cookies)
The crunchy and tasty cookies, invented by the famous (in the Five Shires, at least) Hin baker Miija Copperkettle, grant the eater the effects of a Haste spell for 1d4 rounds. Attempting to eat more than one per day, however, will cause the eater painful heartburn and debilitating cramps, inflicting 1d4 points of damage that can only be cured by a full night's rest (not even magical healing spells will help).
Druids Bayberry Tea (10 gp per cup)
This rather bitter tasting brew, common among the woodland folk of Alfheim, acts as a mild healing draught and a full cup will heal 1d4 hp of damage. Drinking a full pot (4 cups) will either heal 4d4 hp of damage, or cure any single non-magical disease or posion.
Miija's Peculiar Pepper Sauce (100gp for one bottle, 6 chugs)
Another invention of Miija Copperkettle, this extremely hot blend of chili peppers from around the islands of the Five Shires and Ierendi allows anyone taking a gulp of it to spit forth a gout of flame with a 15 foot range and causing 1d6 points of damage to anything it hits.
The sauce burns its drinker as well, however, causing 1d2 points of damage for every gulp taken. In addition, for each gulp taken beyond the first each day, the drinker must make a Save vs Death with a cumulative -1 penalty or die from choking.
Druid's Basil Cakes (10gp for one tart)
These vile tasting herbal tarts require a successful CON check to eat without gagging and vomiting, but if kept down, they guarantee success on any one Save vs Petrification within the next 24 hours.
Miija's Elven Carrot Cake (50gp for one cake, 4 slices)
Eating a slice of this sweet treat grants the eater infravision with a 10 foot range for one hour. Repeated consumption of the cake the same day has no effect.
Miija's Amazing Applesauce (30gp for a 12oz jar)
This thick, sweet and slightly chunky apple sauce is not only delicious, it's extremely filling and nourishing. One 12 oz. jarserves as an entire week's worth of rations.
Miija's Potent Peas (5 gp for 12 peas)
Three of these dried peas will create an entire serving of a nourishing, if rather bland tasting, pea soup when placed in a bowl with hot water. One serving satisfies a humanoid of man size or smaller for one day.
Miija's Regiberry Tea ( 20gp per vial, 3 sips)
One sip of this sweet, fruity tea provides the equivalent of an entire days ration of water.
Miija Copperkettle owns and runs a small bakery in Portown, where these items (including the two druidic recipes) may be purchased, but she has also sold her recipes to other bakers who promise not to open a competing shop in Portown, so the DM can have the items turn up at a market or bakery just about anywhere.
Miija is also constantly on the look out for new and rare ingredients for her culinary creations, and may serve as a minor patron for PCs looking for work.