01 -
Heat your oven to 350°F. Either spray an 8x8 baking pan with cooking spray or line it with parchment paper to prevent sticking.
02 -
In a big bowl, whisk together the oats, baking powder, cinnamon, and salt until everything's well combined.
03 -
Pour in the milk, maple syrup, eggs, melted oil, and vanilla. Stir everything together until it's all mixed up. Don't worry if it looks pretty runny - that's exactly how it should be.
04 -
Gently fold in about ½ cup of the blueberries. Pour the whole mixture into your prepared baking pan, then sprinkle the remaining ¼ cup of blueberries on top.
05 -
Slide the pan into the oven and bake for about 35-40 minutes. You'll know it's done when the center feels set when you gently touch it. Let it cool in the pan for a few minutes before cutting and serving.