More detailed directions (with pictures)
PLEASE NOTE: All ingredients for the cake need to be at room temperature.
Mix the flour, baking powder, and baking soda together by passing them through a sieve a couple of times.
Add the egg to the mixing bowl
Beat the egg with an electric mixer until it is pale yellow in color.
Add the erythritol and stevia to the mix.
Add vanilla extract to the mix
Add dry ingredients (flour, baking powder and soda) to the mix
Add milk to the mix
Add butter to the mix
Mix all ingredients with an electric mixer until smooth
Add the cake batter to a springform cake tin
Place the cake tin in a preheated oven for 40 to 45 minutes or until toothpick comes out clean. Allow to cool on a wire rack.
Cut the cake in slices and serve