Do

1. Preheat oven to 160°C. Grease and line a 10 inch cake tin.

2. Place butter and sugar into the Thermomix bowl. Combine 10 sec/speed 6 or until combined. Insert Butterfly and whip 2 min/Butterfly/speed 4.

3. Add eggs and continue whipping 1 min/Butterfly/speed 4.

4. Sift the flour, bicarb soda and baking powder into the Thermomix bowl. Add salt and vanilla. Combine 10 sec/Butterfly/Interval

5. Add Kefir and combine 10 sec/Butterfly/dough setting/Interval.

6. Pour out half of the batter. Add the cocoa to the Thermomix bowl and combine 10 sec/Butterfly/dough setting/Interval.

7. Dollop batter into cake tin. Alternating choc and vanilla to create a fun pattern. Bake for 50 minutes - 1 hour.

8. Cool in tin for 20 minutes, then turn out onto a wire rack. Cool.

9. We frosted this with Chocolate Ermine Frosting, but you can use any frosting you like. I have linked a few options below.