// Create a new Session
        // POST /api/recipes
        public HttpResponseMessage Post(Ingredient ingredient)
        {
            Uow.Ingredients.Add(ingredient);
            Uow.Commit();

            var response = Request.CreateResponse(HttpStatusCode.Created, ingredient);

            // Compose location header that tells how to get this session
            // e.g. ~/api/session/5
            response.Headers.Location =
                new Uri(Url.Link(WebApiConfig.ControllerAndId, new { id = ingredient.Id }));

            return response;
        }
 // Update an existing Session
 // PUT /api/recipes/
 public HttpResponseMessage Put(Ingredient ingredient)
 {
     Uow.Ingredients.Update(ingredient);
     Uow.Commit();
     return new HttpResponseMessage(HttpStatusCode.NoContent);
 }