Minecraft wiki entry for Recipe_book, associated text: Player.dat root tag
 recipeBook
 recipes A list of all recipes the player has seen.
: the name of a recipe, for instance minecraft:gold_nugget or minecraft:gold_ingot_from_nuggets
 toBeDisplayed A list of all recipes the player has unlocked, but not viewed in the crafting helper yet.
: the name of a recipe, for instance minecraft:gold_nugget or minecraft:gold_ingot_from_nuggets
 isFilteringCraftable: 0 or 1 (true/false). True if the player has enabled the "Show Craftable" feature in the crafting recipe book.
 isGuiOpen: 0 or 1 (true/false). True if the player has the crafting recipe book GUI open.
 isFurnaceFilteringCraftable: 0 or 1 (true/false). True if the player has enabled the "Show Smeltable" feature in the smelting recipe book.
 isFurnaceGuiOpen: 0 or 1 (true/false). True if the player has the smelting recipe book GUI open.
 isBlastingFurnaceFilteringCraftable: 0 or 1 (true/false). True if the player has enabled the "Show Blastable" feature in the blasting recipe book.
 isBlastingFurnaceGuiOpen: 0 or 1 (true/false). True if the player has the blasting recipe book GUI open.
 isSmokerFilteringCraftable: 0 or 1 (true/false). True if the player has enabled the "Show Smokable" feature in the smoking recipe book.
 isSmokerGuiOpen: 0 or 1 (true/false). True if the player has the smoking recipe book GUI open.