Preheat your oven to 350°F (176°C).
Put every single ingredient in a strong blender.
Blend the ingredients very well, the mixture must be perfectly smooth. You can also stir the ingredients together instead of blending, but it may not come out perfect.
Grease a ramekin or small baking dish with cooking spray.
Pour the mixture into the dish. This is the time to add some toppings if you want, like chocolate chips, coconut shreds, or sprinkles. If you have some mixture left over, you can use it for a second dish.
Bake in the oven for about 25 minutes. Afterward, remove the dish and let it cool. You may add additional toppings before serving, like fruits, nuts, and ice cream.