A giant, single-serving oatmeal chocolate brownie breakfast cookie.

Two days ago, my original Overnight Breakfast Cookie post went viral.
I?ve had other recipes go viral in the past? but never this rapidly!
It?s been so much fun to see how many of you have already made your own breakfast cookies ? I love seeing the flavors you’ve been coming up with and all of the breakfast cookie pictures you?ve been posting on social media.
The fact that so many people are trying one of my recipes makes me ridiculously happy.  If you somehow missed the original post, you can find that recipe here: The Overnight Breakfast Cookie.
Thank you SO much to everyone who has been sharing the recipe!!!

As soon as I saw how much love there was for the original breakfast cookie recipe, I naturally had to change my posting schedule for today in order to get a chocolate version up, because I fully believe there should be a chocolate version of just about everything. It also gives me a chance to answer some common questions you?ve been asking about the recipe, so here goes?

Common Breakfast Cookie Questions:
1. If I don?t want to use protein powder in the recipe, what can I substitute"
You can substitute an equal amount of either pb2 or your favorite flour for the protein powder. I?ve tried oat flour, and I know many readers have been making the recipe with almond flour.
2. Do I cover the cookie before it goes in the fridge"
I?d recommend gently placing a paper towel on top or leavi...