Cream soup mix / substitution

2 cups nonfat powdered milk 3/4 cup cornstarch 1/4 cup instant chicken bouillon ( I skipped this) 2 Tbs. dried onion flakes ( I used onion powder) 1 tsp basil leaves ( I used ground) 1 tsp thyme leaves (I used ground) 1/2 tsp pepper 1 cup whey (Your suggestion) Combine all ingredients, mixing well. Store in an air tight container until ready to use.