Run out of an ingredient for dinner? Scientists explain what to substitute for it

So you’re out of vanilla for your annual Thanksgiving upside-down cake. Try peach schnapps. Out of eggs for baking? Give it a shot with some olive oil. Or corn starch. Or a mashed banana. A team of researchers mined recipe sites to find out what can be swapped for what. Turns out that almost any ingredient is replaceable — via io9