The master list is a list of ingredients based on all the recipes and dishes you plan to cook for meals in a given amount of time, most likely a week.

Don’t get confused with the grocery list which is the list with the items which you are shopping for; master list to grocery list like peas to be in the pod, where master list is the pod and the peas is where the grocery list item to get to be in the pod (master list) given that you have probably check with your inventory. 

Step 1: Let take an example on a weekly meal plan, first plan your week’s meals with a detailed ingredient list for them. 

Step 2: Check all your ingredients at hand and recipes that needed them, then check off those ingredients that you don’t have and that is your grocery list.