cinnamon protein cake

This super easy protein cinnamon cake great for breakfast or any time of the day.
Ingredients:
1. 1/4 cup quick oats
2. 1 egg white
3. 1 scoop vanilla protein powder
4. 2 tsp sweetener (erythritol)
5. 1/2 tbst cinnamon
6. 1/3 cup water
Method:
1. Preheat the oven to 325F (165C).
2. Spray a small non-stick pan or bowl 11 cm (4.5 inches across) with non-stick cooking spray.
3. Blend the oats, egg white and water until smooth consistency.
4. Pour the mixture into a bowl. Whisk it together with the protein powder and 1 tsp erythritol. The mixture should be like thick pancake batter.
5. Pour half of the batter into prepared bowl and sprinkle with two-thirds of the cinnamon plus 1 tsp of erythritol. Pour the remaining batter and sprinkle with the rest of the cinnamon.
6. Pull a knife through the batter a few times to slightly mix in the cinnamon and erythritol.
7. Bake for 25 minutes and let it rest for a few minutes before serving. Makes 1 serve.