Preheat the oven to 220C/Gas Mark 7 (or slightly lower – around 200C if you are using a fan oven) and put two baking trays in to heat.
To make the sauce, put the tomatoes, mixed herbs and sugar into a saucepan. Peel and finely grate the garlic, add it to the pan and set over a medium heat. Simmer gently for 10 minutes until it has thickened, then remove from the heat and season with salt and pepper. Leave to cool.
To make the dough, combine the flour, baking powder and salt in a bowl and make a well in the middle.
Pour the yoghurt into the well in the flour, and stir with a fork to combine. Keep mixing until the mixture forms a rough dough.
Turn out the dough onto a lightly floured work surface and knead to form a smooth ball. Handy technique: Use the heel of your hand!
Divide the dough into 4 equal pieces and roll each piece out into a thin circle to form your pizza base.
Carefully remove the hot baking trays from the oven and lay the pizza bases on top. Put them into the oven and bake for 3-4 minutes until they begin to rise, and then remove them from the oven.
Turn the pizza bases over and spread an even layer of the tomato sauce over each one.
Tear your mozzarella into pieces and scatter over the top of each pizza. Then add a selection of your favourite toppings!
Season each pizza with black pepper, sprinkle over a pinch of herbs, and return them to the oven. Bake for 5 minutes until the cheese has melted and is bubbling. Enjoy!
Preperation time: 15 minutes
Cooking time: 20 minutes