You can create customized categories so that you can easily sort the recipes in your cookbook. In Meal Garden, these categories are called 'Collections'.
You'll notice a tab on the right-hand side of your screen in your Cookbook that says 'My Collections'.
Simply start by dragging and dropping a recipe to that tab, which will add it to a 'New Collection', and then you'll get a prompt to name that New Collection to whatever you like.
That collection will then appear in your recipe collections folder 'My Collections' and will be easily accessible at any time from your Cookbook page.