Substitute a cheaper ingredient for a more expensive one. For instance, it won’t make a difference if you use an onion instead of 1-2 leeks. I have nothing against leeks, although they are messy to clean. Leeks are probably listed as an ingredient in the first place because the recipe writer wanted to make the recipe more distinctive-sounding, not more distinctive-tasting. New recipes are sometimes just “improvements” on old recipes. The unwritten rule for writing recipes is to change at least 3 ingredients.
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