Cheapest priced copy (Modern Horizons 2): $0.39 at Card Kingdom, near mint, their price list as of .
The Underworld Cookbook 
Artifact — Book · Uncommon · Modern Horizons 2 · #240
{T}, Discard a card: Create a Food token. (It's an artifact with "{2}, {T}, Sacrifice this token: You gain 3 life.")
{4}, {T}, Sacrifice this artifact: Return target creature card from your graveyard to your hand.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
2 printings · $0.39 to $0.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Modern Horizons 2 | 240 | Uncommon | $0.49 | $0.79 |
| Modern Horizons 2 | 434 | Uncommon | $0.39 | $0.99 |
4 rulings from Wizards of the Coast
- 18 June 2021The Underworld Cookbook's last ability can target any creature card in your graveyard, not just one discarded with its first ability. For example, if a Granite Gargoyle you control dies after being dealt damage by Lightning Axe, you could use The Underworld Cookbook to make a delicious Gargoyle entrée.
- 8 November 2024Whatever you do, don't eat the delicious cards.
- 8 November 2024Food is an artifact type. Even though it appears on some creatures, it's never a creature type.
- 8 November 2024You can't sacrifice a Food to pay multiple costs. For example, you can't sacrifice a Food token to activate its own ability and also to activate Maraleaf Rider's ability.