Mix the egg and melted fat together.
Add the ground almonds, baking powder and spice, if required.
Add the fruit if required. Mix well.
Put in a small microwavable pot or mug and microwave on full-power for 3 minutes.
They can be cooked in the oven for 10 to 15 minutes at 180°C fan and you can even cook lots at a time in a cupcake tray.