Here are the main ingredients
Old-fashioned oats – One of the questions that I got most often was if different kinds of oats can be used for this recipe. I’ve only tried it with old-fashioned oats, so try quick oats at your own risk. I do not recommend steel cut oats because they are very hard when not cooked and will not blend. Be sure to use certified gluten-free oats, if needed.
Milk – Use what you like! I tested this with oat milk, almond milk, and 2% milk. They all worked great!
Maple syrup – Several people complained that there was too much maple syrup in this recipe. However, there’s only 1/4 cup for the whole recipe, which is 200 calories. Split between the 4 servings, that’s just 50 calories per serving, which is worth it to me for the nice bit of sweetness it adds. If preferred, you can decrease or omit the maple syrup entirely.
Flavorings – A bit of vanilla and cinnamon gives these blended baked oats a warm, cozy flavor. Both are optional additions.
Salt, baking powder and baking soda – Helps to make the blended oats bake up fluffy with a bit of rise.
Banana – One large ripe banana replaces the eggs to bind all of the ingredients together, add a delicious amount of sweetness, and kind of tastes like banana bread.
Nut or seed butter – I really like the flavor that the nut butter or seed butter added to the oats, but you can actually leave this out, if you prefer.
How to Make Baked Oats
Pre-heat the oven to 350 degrees F and grease a small casserole dish. Mine is a unique size of 6×8 but anything close to that will work including a 9×5 bread loaf pan or an 8×8-inch brownie pan (although you might want to slightly alter the baking time depending on your size).
Add all ingredients to a blender MINUS any mix-ins you want to use, like blueberries, chocolate chips or nuts. Blend until creamy and little to no chunks of the oats remain. Stir in berries or anything else you desire.
Pour batter into the greased baking dish and top with any additional mix-ins, as desired. Bake for 20-25 minutes (mine was perfect at 25 minutes) or until a toothpick inserted in the middle comes out clean.