If you're looking for a healthy treat or satisfying breakfast, these Banana Oatmeal Bars are perfect. Not only are they easy to make, but highly customizable so you can add in your favorites like nuts, blueberries or chocolate chips.
Preheat oven to 350℉. Line a 9 x 9 inch baking pan with parchment paper and set aside while you prep the batter.
In a medium sized bowl, add the bananas, maple syrup, peanut butter, egg, milk, and vanilla. On low speed, use a handheld mixer to whisk the wet ingredients together until smooth and combined.
Add in the remaining dry ingredients (including your favorite add-in, if using) and use a rubber spatula to combine. The batter will be slightly thick, but still moist and pourable.
Pour out the mixture evenly into the baking pan, smoothly out evenly.Bake for 25 minutes. (It will still be a bit soft).
Remove from the oven and let cool at room temp for an hour. Cover, and refrigerate for another hour. Then, remove from the fridge and lift the bars out of the pan. Wait to cut until they have chilled.
Cut into squares. Store in an airtight container in the fridge for up to 10 days.