Preheat oven to 350°F (175°C) and grease a 6-ounce to 8-ounce oven-safe ramekin.

Place rolled oats, applesauce, milk, egg, maple syrup, baking powder, vanilla extract, and salt into a high-speed blender.

Process on high speed for approximately 30 to 45 seconds until the mixture is completely smooth and resembles a thin batter.

Pour the batter into the prepared ramekin.

Sprinkle chocolate chips over the top and stir slightly to incorporate.

Bake for 22 to 25 minutes or until the top is golden and a toothpick inserted into the center comes out clean.

Remove from oven and allow to rest for 5 minutes before consuming.