This mug cake is very easy to make and doesn't have any egg or oil. Without the egg yolk, the cake comes out quite pale, but it also doesn't have any "eggy" taste to it.
Mix together flour, baking powder, cinnamon, mashed banana, sugar, and milk into a microwaveable mug with a small whisk until smooth. Stir in the cinnamon chips, leaving a few to sprinkle on top. Microwave for about 1 minute. Surface of cake should be dry. Let cake cool for about 1/2 hour before eating.
Notes
You will need approximately 1/2 of a banana. Keep in mind that 2 tbsp of mashed banana is more than 2 tbsp of whole banana. Just like banana bread, the riper the better for the banana.
The nutrition information provided are only estimates based on an online nutritional calculator. This is not a comprehensive list of all the nutrients in the recipe (i.e., does not include vitamins, cholesterol, etc). I am not a certified nutritionist. Please consult a nutritionist or doctor for accurate information and any dietary restrictions and concerns you may have.