Cor, chief! Would you look at the size of that?! Give Penfold's delicious Jam Doughnut in a Mug recipe a go, it's a tasty world-saving snack. Now, add the sugar, egg and flour (in that order ...

1. Put the butter in a mug and melt in the microwave for 30 seconds. 2. Now add the sugar, egg and flour (in that order) to the melted butter and beat until smooth. 3. Add one spoonful of jam and ...