diff --git a/cookbook/src/lib.rs b/cookbook/src/lib.rs
index 4b35b6a..f95df84 100644
--- a/cookbook/src/lib.rs
+++ b/cookbook/src/lib.rs
@@ -1,4 +1,6 @@
 mod meal;
+mod storage;
+mod importer;
 
 pub use self::meal::Meal;
 
diff --git a/cookbook/src/meal.rs b/cookbook/src/meal.rs
index 393bfd4..9e1c4da 100644
--- a/cookbook/src/meal.rs
+++ b/cookbook/src/meal.rs
@@ -1,5 +1,17 @@
 
+/// An individual ingredient
+pub struct Ingredient {
+    name: String,
+}
 
+impl Ingredient {
+
+    pub(super) fn new(name: String) -> Ingredient {
+        Ingredient { name }
+    }
+}
+
+/// An ordered set of dishes
 #[derive(Debug,Clone)]
 pub struct Meal {
     name: String,
diff --git a/cookbook/src/storage.rs b/cookbook/src/storage.rs
new file mode 100644
index 0000000..fe25832
--- /dev/null
+++ b/cookbook/src/storage.rs
@@ -0,0 +1,20 @@
+//! Storage backend for persistent data
+//!
+use std::collections::HashMap;
+
+/// An entry in the storage
+struct Entry<T>(T);
+
+/// A storage container
+pub struct Storage<T> {
+    content: HashMap<String, Entry<T>>,
+}
+
+impl<T> Storage<T> {
+    pub(super) fn insert(&mut self, item: T) -> Result<(), ()> {
+    
+        Err(())
+    }
+}
+
+