How do I roll oats and other grains?

Soak the whole grains in water for a few hours or overnight, then roll them in a roller. A pasta roller might work if you angle it; specialty grain rollers have rougher rollers, to help catch the grains and pull them through. Then place your rolled grains on a cookie sheet and bake them at no higher than 140-degrees until they're dry.

Note that one grainy who tried this said the oats just got mushy and stuck to the rollers.