Do you know any cheap do-it-yourself food hacks for restaurant lovers?

For example, making your own melted Brie cheese with fruit instead of paying double for it at the restaurant, making your own pinwheel sandwiches is cheaper, making your own chocolate fondue is cheaper than restaurant chocolate fondue, seasoning your popcorn with turmeric powder for nutrition benefits etc…

Do you know any cheap do-it-yourself food hacks for restaurant lovers?
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