You can create recipes which are then linked to a sellable product.

• Before starting, make sure that all individual ingredients have been created as warehouse products
• Using the navigation bar on the left, click Administration.
• Select Recipes, a list of all the available recipes will displayed
• Select Create new
• Fill-in the basic information of the recipe
• Select all the individual ingredients using the drop-down list
• Select Add to recipe
• Insert the amounts that each ingredient is used in the recipe
• When done, click Save changes

The guide on how to link a recipe to a sellable product is here:

Warehouse Linking for Products