Directions

1Preheat oven to 350 degrees F for 5 minutes. Grease and flour a baking tin.

2Mix the flour, baking powder, and baking soda together by passing them through a sieve a couple of times.

3Extract orange juice and zest from the orange.

4In a large bowl, beat the egg yolks. Add erythritol, stevia, melted butter, orange juice, orange zest and vanilla extract to the mix. Add the dry ingredients and mix well.

5Beat the egg whites until light and fluffy. Add egg whites to the mix.

6Pour the batter into the baking tin and bake 40 to 45 minutes or until toothpick comes out clean. Cool on wire racks for 10 minutes. Cut the cake in slices and serve.