I was out of an ingredient, no time to run to store, so I made a very unorthodox substitution that I don't think many people would have thought of. Many if not most would even say "Eeewww!"
But--it worked! Here's the story:
I had a new recipe for a potato-cheddar soup, done in the crock pot. I bought all the ingredients, but when I was already partway through the process, I realized I'd missed one ingredient: It called for half-and-half. I had none. What to do? I could have used plain milk, but since hubby drinks skim milk, it wouldn't have added that same richness. I thought about it for a while. Then, a brilliant idea came to me.
Why not mix a little vanilla ice cream with the skim milk? It should produce a similar result. I called both of my daughters, and asked them what they thought. As I suspected, they cried, "Eeww! No!" Undeterred, I proceeded. For a cup of half-and-half, I subbed in 1/4 cup of vanilla ice cream and 3/4 cup of skim milk, mixing it well so the ice cream was liquified.
Whaddya know? It worked! No sweetness from the ice cream; no 'off' flavor.
One of the girls actually suggested coffee creamer, but no--that would have been a bad off-taste, I think, since we use a non-dairy vanilla-flavored creamer. It's very much sweeter and a much heavier vanilla flavor than the ice cream.
Moral of the story: Never be afraid to experiment!