They have to be freeze-dried.
The kind of cereal that stays crunchy a long time would be cereal that has a sugary coating which prevents it from absorbing the milk too fast. Other cereals that have dense grains will also stay crunchy longer.
No cinnamon is not crunchy it is kind of powder.
It depemds some are slimy and mushy some are hard and crunchy.
plain cereal
Mijo is a kind of cereal (millet in English)
Mallows (Mallow Bars)
Kraft crunchy.
marshmallows milk mayonnaise cheese seltzer
Eat every kind of cereal.
I can't tell you exactly what KIND of cereal it was but a can tell you what brand it is..... Kellogs!
puftees
Frootloops