1. Add butter and sugar to a bowl and beat together. Add the eggs, flour and bicarbonate soda and mix together.
2. Peel and grate the apple into the mix and fold together.
3. Line an 8 inch cake tin with parchment paper and then spoon in the mixture. Cook in the oven at 160 degrees for approximately 45 minutes. Once cooked, allow it to cool.
4. To make the sauce, in a saucepan place the cream, butter and sugar. Set to a slow heat and stir continuously. Bring to the boil and then simmer gently.
5. To serve, cut the pudding into 8 pieces. Reheat the pudding and pour over the sauce. Serve with vanilla ice cream or custard.
Enjoy!