Pre-heat the oven to 180℃. Grab a large bowl, add the sugar and the butter, then mix it all up using a wooden spoon. Once it's creamy, add in the egg and beat it all together.

Then it's time to throw in the flour, salt and bicarb. You can break the chocolate down into little chips by hitting it with something while it's still in the packet, or cutting it into pieces with a sharp knife. Add the chocolate chunks to the mixture and give everything a good stir until it's all combined and the chocolate is evenly distributed out in the dough.

Get a baking tray and put some greaseproof paper onto it. Then scoop balls of dough onto the tray, keeping them spaced quite far apart from each other. Then it's into the oven for 10 minutes.

Once they're done in the oven, move them off the tray to cool down a bit before tucking in!