Yes, of course! You can totally make this oatmeal porridge hot like in the recipe or cold in the form of overnight oats. To do so, simply add all oatmeal ingredients to a bowl and mix together until combined. Tightly cover bowl with plastic wrap and refrigerate overnight (or at least 8 hours). On the day of, roast the peaches per the recipe and whip together the cinnamon crumble. Once ready to serve, top overnight oats with toppings and enjoy.