Cream Soup Substitute

I would have sworn I had this recipe on here but I can't find it by searching so I'm putting it on again.

Ingredients:
2 cups dry milk
3/4 cup cornstarch
1/4 cup chicken bouillon granules
2 tablespoons dried onion flakes, optional
1 teaspoon dried leaf thyme
1/2 teaspoon dried leaf basil, optional
1/2 teaspoon dried leaf oregano, optional
1/2 teaspoon ground marjoram, optional
1/2 teaspoon pepper
2 to 3 teaspoons butter
Preparation:
Combine all ingredients except butter together and store in airtight container. To use, mix 1/2 cup dry soup mix with 1 1/4 cups water and cook until thick; add butter. This is equal to one can cream soup. The mix makes enough to equal 9 to 10 cans. For cream of mushroom or celery soup, add chopped sauteé mushrooms or celery along with the butter while cooking.