Froggle Bunwich

This lands in the middle food tier, so it gives more than a plain snack while it is running. The catch is how quickly it burns out. Six minutes is a pre-fight consumable, not something you eat and forget, so line it up with your potions right before you drop a summon item rather than chewing through one while you are laying floorboards.

If you want a buff that survives a whole exploration run, take a weaker food with a longer clock instead. The stronger tiers are for the fight itself.

Both the sandwich and its tooltip come from Don't Starve, where the same dish exists and Maxwell has a line about it when you inspect one. The two games have swapped content in both directions, so this is a wink rather than a coincidence.