Longtime readers know, I make substitutions in my recipes with alarming regularity. I thought I'd share some of my common ones to help you on your frugal way. I don't claim to have invented all of these ideas, these are just ones I use all the time.
a chopped onion - 1 tsp onion powder or several chopped scallions or leeks
a clove of garlic - 1/2 tsp garlic powder or garlic scapes
celery - 1 tsp celery seed or celeriac or stems from kale & collards or chopped swiss chard
brown rice syrup - an equal amount of maple syrup
rice vinegar - apple cider vinegar, although its too harsh in salad dressing recipes
pumpkin puree - any winter squash or even sweet potato in a pinch
dried cranberries - dried currants, they're cheaper and unsweetened
honey - an equal amount of molasses
egg - 1 tbs ground flaxseed meal plus 2 tbs water This works in baked goods only! Don't try to scramble it.
shortening - use slightly less canola oil, i.e. if the recipe calls for 1/2 cup shortening use 1/3 cup canola oil
tomato paste - ketchup can work in a pinch if its good quality ketchup although I don't think I'd try it in pasta dishes.
worcesteshire sauce - an equal amount of Bragg's Liquid Aminos
What are your favorite substitutions?