Heat up your convection oven or toaster oven since this smallish cake only requires a small oven. Heat your oven to 390 degrees

In a medium bowl heat your butter about 30 seconds and then add the egg and vanilla extract and mix

Add all your dry ingredients one at a time: Cinnamon, baking powder and sweetener and mix very well

Eventually add the almond flour to the mix and then mix everything together thoroughly

Fold in the mixed berry fruits and then use a spatula to pour and scrape to a baking pan

Make sure you put some spray or oil in the baking pan so the cake does not stick to the bottom or sides of the pan.

When the pre-heat on the oven sounds off then place the pan into the oven and cook for approximately 15 minutes.

When you hear the bell sounding, check your cake with a toothpick to see if it is cooked or doughy and if so add a few more minutes baking time and let the pan cool off in the oven.