Preheat the oven to 340 F or 170 C.
In a bowl, add all the dry ingredients and mix until well combined.
Add all the wet ingredients and whisk until well combined. The batter is thick and smooth.
Pour the batter into a greased pan lined with parchment paper at the bottom. In the video, I used a 6 inch or 15 cm round pan with a removable bottom. You can also use a springform pan or any suitable pan. This cake is quite small so you can easily increase the recipe.
Bake at the middle rack for 40 to 50 minutes or until a wooden skewer comes out clean.
Cool completely on a wire rack then dust with powdered sweetener (optional).