1) Add all the ingredients above to the bowl of the Stand Mixer Mini and season with a pinch of salt.
2) Then attach the wire whip and lower the mixer head. Select speed 4 and mix the cake ingredients for 4 minutes until smooth. Tilt the mixer head up again and remove the wire whip.
3) Pour the runny chocolate batter into 2 large microwave resistant mugs or ramekins. Don’t make them too full: fill the cups about halfway or the batter will raise too high while cooking and drip down the sides which will make your mug cakes look very ugly.
4) Place one mug with chocolate batter in the microwave and turn it on high. Let the mug cake cook for 2 minutes. The batter should have set. If not, cook it for 20 seconds more. Then remove the mug and cook the other one in the microwave. Serve warm.