Seed Data with Elixir

Hello,

I am working on a new application with Elixir, Dish_out. I want to see Data I follow this tutorial with Elixir Casts. However, I am not sure if what I am doing is correct because my seed file does not work.
My Seed File:

alias DishOut.Recipes

Recipes.insert!(
    %{title: "Mac N Cheese", ingredients: "Elbow Pasta, Milk, Cheese, Heavy cream", summary: "Bring pasta to a boil for 10 mins, drain water, add milk, cream, and cheese in. Stir and allow to cool before consuming.", date: "032022"}
)

In video the moderator alias another file, what is that file?