I've eaten this on the trail from time to time, and it's never really the right texture, but if it doesn't taste good, I didn't hike hard enough that day!

Less water would help you, since if it's not in the microwave, you're not going to lose much if any to evaporation or boil-over.

I've moved away from EZmac though, as it doesn't have to great a calorie to weight ratio...
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Light, Cheap, Durable...
pick two