I recently saw on another site somewhere, that the person would take a 1/2 cup of cereal, add sugar free syrup (any flavor), heat it in the microwave and then add a tablespoon of heavy cream to it. The cereal soaks up the color of the syrup and puffs up as if you would add "milk" to it

Her combinations were strawberry syrup
Maple syrup with some nuts thrown in
Cinnamon flavored, etc...

I personally really like the Keto Cereal--both cocoa and regular flavors. They are very filling.