MasterCook includes the ingredients from the Standard Reference library of the USDA Food and Nutrient Database. Recipes call for ingredients by a variety of names. The USDA doesn't have every ingredient or multiple variations. However, after importing the USDA ingredients, MasterCook added synonyms for some common names. You can add more if you want as explained below.
In order to assist you in locating a similar ingredient, we have provided a text file of the ingredient names used in MasterCook. See the attached .txt files below. Download the file to your computer. Use it to search for an ingredient by its name to see where it is in the list.
The MCIngTxt.txt file contains the ingredient names included in MasterCook 15 and earlier. There are about 9,000+ ingredient names in MasterCook 15 and older.
The MC2020IngNames.txt file contains the ingredient names included in MasterCook 2020. There are over 16,000 ingredient names in MasterCook 2020.
You can either link your unknown ingredients in a recipe to one in MasterCook's internal database or you can create a synonym of an existing ingredient in the Ingredient List in the program. The program's help explains how to do these things. It has a Search tab too. Just search for link or synonym to find those instructions. Go to the Help menu in MasterCook. Select Help Contents to access the program's help. If the window doesn't appear, just restart MasterCook try again.
This article explains how you can add your own ingredients:
If you add or edit the Ingredient List, you will want to make sure you regularly backup the MC Ingredients.ing file that's inside the MC Tools folder on your computer. It contains all of your edits.