diff --git a/prototypes/recipes/recipes-kimberlite.lua b/prototypes/recipes/recipes-kimberlite.lua
index 148fb42..b3a04cc 100644
--- a/prototypes/recipes/recipes-kimberlite.lua
+++ b/prototypes/recipes/recipes-kimberlite.lua
@@ -1,3 +1,22 @@
+RECIPE{
+  type = "recipe",
+  name = "thicken-coal-fines",
+  categories = {"thickener"},
+  enabled = false,
+  energy_required = 5,
+  ingredients = {
+    {type = "fluid", name = "high-ash-fines", amount = 150},
+    {type = "item", name = "starch", amount = 1},
+  },
+  results = {
+    {type = "fluid", name = "thickened-coal-fines", amount = 100},
+    {type = "fluid", name = "water", amount = 50},
+  },
+  main_product = "thickened-coal-fines",
+  subgroup = "py-fusion-items",
+  order = "a"
+}:add_unlock("diamond-mining")
+
 RECIPE{
   type = "recipe",
   name = "coal-dust-early",
@@ -31,4 +50,4 @@ RECIPE{
   main_product = "kimberlite-rock",
   subgroup = "py-fusion-items",
   order = "a"
-}:add_unlock("diamond-mining")
\ No newline at end of file
+}:add_unlock("diamond-mining")