Betterberry

Up to ten berries appear in your hand and are infused with magic for the duration. A creature can use its bonus action to eat one berry. Eating a berry restores 1d4+spell casting modifier hit points, and the berry provides enough nourishment to sustain a creature for one day.

When casting at higher levels, it adds an additional 1d4 hit points.

The berry looses it's potency after 24 hours and no longer has an effect.