/recipe

Gives or takes recipe knowledge from players. Affects which recipes appear in the recipe book.

Syntax

/recipe <give|take> <targets> <recipe|*>

Name	Type	Required	Description
action	literal	Required	give or take.
targets	entity	Required	The player(s) to affect.
recipe	resource	Required	The recipe ID to grant/revoke, or * for all recipes.

/recipe give @s *

Unlocks all recipes in the recipe book for yourself.

/recipe take @a *

Removes all recipe knowledge from all players.

/recipe give @p minecraft:diamond_sword

Unlocks the diamond sword recipe for the nearest player.

Confusing recipe unlock with item giving, /recipe only affects the recipe book, not the player's inventory.
Using the item name instead of the recipe ID, some items have multiple recipes with different IDs.

Recipes are unlocked in the recipe book UI. Players can still craft items without unlocking recipes by placing items in the crafting grid manually.

Try these commands on Astroworld or host your own server.