diff --git a/2015/lib/2015/15.ex b/2015/lib/2015/15.ex
new file mode 100644
index 0000000..99ef125
--- /dev/null
+++ b/2015/lib/2015/15.ex
@@ -0,0 +1,26 @@
+import AOC
+
+aoc 2015, 15 do
+  def parse_ingredient(str) do
+    [name | properties] =
+      Regex.run(
+        ~r/(\w+): capacity (-?\d+), durability (-?\d+), flavor (-?\d+), texture (-?\d+), calories (-?\d+)$/,
+        str,
+        capture: :all_but_first
+      )
+
+    [capacity, durability, flavor, texture, calories] =
+      properties |> Enum.map(&String.to_integer/1)
+
+    {name, [capacity, durability, flavor, texture], calories}
+  end
+
+  def p1 do
+    input_stream()
+    |> Stream.map(&parse_ingredient/1)
+    |> Enum.to_list()
+  end
+
+  def p2 do
+  end
+end