PaperMC/paper-server/nms-patches/net/minecraft/world/item/crafting/ShapelessRecipes.patch

--- a/net/minecraft/world/item/crafting/ShapelessRecipes.java
+++ b/net/minecraft/world/item/crafting/ShapelessRecipes.java
@@ -13,6 +13,13 @@
 import net.minecraft.world.item.ItemStack;
 import net.minecraft.world.level.World;
 
+// CraftBukkit start
+import org.bukkit.NamespacedKey;
+import org.bukkit.craftbukkit.inventory.CraftItemStack;
+import org.bukkit.craftbukkit.inventory.CraftRecipe;
+import org.bukkit.craftbukkit.inventory.CraftShapelessRecipe;
+// CraftBukkit end
+
 public class ShapelessRecipes implements RecipeCrafting {
 
     final String group;
@@ -27,6 +34,22 @@
         this.ingredients = nonnulllist;
     }
 
+    // CraftBukkit start
+    @SuppressWarnings("unchecked")
+    @Override
+    public org.bukkit.inventory.ShapelessRecipe toBukkitRecipe(NamespacedKey id) {
+        CraftItemStack result = CraftItemStack.asCraftMirror(this.result);
+        CraftShapelessRecipe recipe = new CraftShapelessRecipe(id, result, this);
+        recipe.setGroup(this.group);
+        recipe.setCategory(CraftRecipe.getCategory(this.category()));
+
+        for (RecipeItemStack list : this.ingredients) {
+            recipe.addIngredient(CraftRecipe.toBukkit(list));
+        }
+        return recipe;
+    }
+    // CraftBukkit end
+
     @Override
     public RecipeSerializer<?> getSerializer() {
         return RecipeSerializer.SHAPELESS_RECIPE;