These are super easy to make! It's all about pre-soaking grains/seeds. Why? To destroy the phytates. These stop mineral absorption. They are also known as "anti-nutrients" for this very reason.
To make these cookies, all you do is pre-soak oats [organic if possible, and not quick oats], along with your fav seeds. I often use pumpkin as they are full of zinc - a good thing for males - help prevent prostate issues.
I don't measure, just keep mix fairly moist. You can also mix in some dried fruit. Let soak overnight. The next day, just spread onto a cookie sheet and cook till brown. They take quite a while - even 30 minutes at 350F due to the high liquid content. I make one big one in the toaster oven.
You could use water or yogurt as a substitute for the kefir.