Add steel cut oats, chia seeds, and cinnamon to a large saucepan, giving the ingredients a stir to distribute them evenly.
Pour in your liquid of choice. Heat the ingredients over medium-high, bringing the liquid to a boil.
Reduce the heat to med-low, stir in frozen or fresh berries, and continue to cook until the liquid has absorbed. This will take about 20 minutes if using regular steel cut oats (for quick cooking steel cut oats, this will be closer to 7 minutes). Feel free to add more liquids to get the oats to your desired consistency, as needed.
Serve oats hot and add toppings as desired. My personal favourites: a dollop of almond butter, plain Greek yogurt, hemp seeds, and some raw cacao nibs. Stir everything together and enjoy!
