--- a/net/minecraft/world/item/crafting/IRecipeComplex.java
+++ b/net/minecraft/world/item/crafting/IRecipeComplex.java
@@ -8,6 +8,15 @@
 import net.minecraft.network.RegistryFriendlyByteBuf;
 import net.minecraft.network.codec.StreamCodec;
 
+// CraftBukkit start
+import net.minecraft.world.item.ItemStack;
+import org.bukkit.NamespacedKey;
+import org.bukkit.craftbukkit.inventory.CraftComplexRecipe;
+import org.bukkit.craftbukkit.inventory.CraftItemStack;
+import org.bukkit.craftbukkit.inventory.CraftRecipe;
+import org.bukkit.inventory.Recipe;
+// CraftBukkit end
+
 public abstract class IRecipeComplex implements RecipeCrafting {
 
     private final CraftingBookCategory category;
@@ -34,6 +43,19 @@
     @Override
     public abstract RecipeSerializer<? extends IRecipeComplex> getSerializer();
 
+    // CraftBukkit start
+    @Override
+    public Recipe toBukkitRecipe(NamespacedKey id) {
+        CraftItemStack result = CraftItemStack.asCraftMirror(ItemStack.EMPTY);
+
+        CraftComplexRecipe recipe = new CraftComplexRecipe(id, result, this);
+        recipe.setGroup(this.group());
+        recipe.setCategory(CraftRecipe.getCategory(this.category()));
+
+        return recipe;
+    }
+    // CraftBukkit end
+
     public static class Serializer<T extends RecipeCrafting> implements RecipeSerializer<T> {
 
         private final MapCodec<T> codec;
@@ -41,13 +63,13 @@
 
         public Serializer(IRecipeComplex.Serializer.Factory<T> irecipecomplex_serializer_factory) {
             this.codec = RecordCodecBuilder.mapCodec((instance) -> {
-                P1 p1 = instance.group(CraftingBookCategory.CODEC.fieldOf("category").orElse(CraftingBookCategory.MISC).forGetter(RecipeCrafting::category));
+                P1<RecordCodecBuilder.Mu<T>, CraftingBookCategory> p1 = instance.group(CraftingBookCategory.CODEC.fieldOf("category").orElse(CraftingBookCategory.MISC).forGetter(RecipeCrafting::category)); // CraftBukkit - decompile error
 
                 Objects.requireNonNull(irecipecomplex_serializer_factory);
                 return p1.apply(instance, irecipecomplex_serializer_factory::create);
             });
             StreamCodec streamcodec = CraftingBookCategory.STREAM_CODEC;
-            Function function = RecipeCrafting::category;
+            Function<RecipeCrafting, CraftingBookCategory> function = RecipeCrafting::category; // CraftBukkit - decompile error
 
             Objects.requireNonNull(irecipecomplex_serializer_factory);
             this.streamCodec = StreamCodec.composite(streamcodec, function, irecipecomplex_serializer_factory::create);