Is it cheaper to cook at home or order food delivery when living alone here?

I’ve been living solo for a while now, and I’m starting to wonder if cooking at home is really saving me money anymore. Between groceries, condiments, gas, and the occasional wasted ingredients, sometimes it feels like just ordering from GrabFood or ShopeeFood might be easier and not that much more expensive. For those of you living alone in Vietnam, what’s your experience? Do you find cooking at home cheaper in the long run, or has delivery become your go-to?