diff --git a/cf-lib/data/Recipe.lua b/cf-lib/data/Recipe.lua
index 199005c..213aa14 100644
--- a/cf-lib/data/Recipe.lua
+++ b/cf-lib/data/Recipe.lua
@@ -187,6 +187,17 @@ function Recipe:removeResult(resultName)
     return self
 end
 
+--- Adds an additional crafting category
+--- @param categoryName string The name of the crafting category
+function Recipe:addCategory(categoryName)
+    local categories = self.prototype.additional_categories or {}
+    self.prototype.additional_categories = categories
+    if not table.contains(categories, categoryName) then
+        table.insert(categories, categoryName)
+    end
+    return self
+end
+
 --- Adds the recipe to a technology
 --- @param technology string|table The name of the technology or the technology table
 function Recipe:unlockedByTechnology(technology)