diff --git a/crafting.lua b/crafting.lua
new file mode 100644
index 0000000..9ccbc26
--- /dev/null
+++ b/crafting.lua
@@ -0,0 +1,34 @@
+--- Glass craft recipes.
+--
+-- @modlule crafting
+
+
+--- Cooking.
+--
+-- @section cooking
+
+
+--- Glass recipe.
+--
+-- @recipe glass:plain
+-- @rtype cooking
+-- @output 1
+-- @input group:sand
+core.register_craft({
+	type = 'cooking',
+	output = 'glass:plain',
+	recipe = 'group:sand',
+})
+
+
+--- Obsidian glass recipe.
+--
+-- @recipe glass:obsidian
+-- @rtype cooking
+-- @output 1
+-- @input default:obsidian_shard
+core.register_craft({
+	type = 'cooking',
+	output = 'glass:obsidian',
+	recipe = 'default:obsidian_shard',
+})
diff --git a/init.lua b/init.lua
index 4bc6aa7..85af551 100644
--- a/init.lua
+++ b/init.lua
@@ -20,6 +20,7 @@ glass.path = core.get_modpath(glass.name)
 local scripts = {
 	'functions',
 	'nodes',
+	'crafting',
 }
 
 for _, s in ipairs(scripts) do