*Note: Making your own porridge mix is a totally optional step (you could easily buy a 7-grain hot cereal mix such as Bob's Red Mill or Arrowhead Mills). However, it's very easy to make your own porridge mix, and you technically don't even need to measure. Just aim for about half oats and then throw in whatever other whole grains you have on hand by the spoonful! If you don't have all the grains I use, you could substitute brown rice, barley, spelt, farro, or anything else you may have on hand! Pulse any large grains in a food processor a few times to break them down. If you do follow the recipe I shared as I wrote it, it makes enough porridge mix for 2-3 loaves of bread!