Mix the pizza base ingredients together with enough warm water to make a dough. Leave it to rise for as long as you can, the longer you can leave it, the more it improves the flavour. Maybe mix it up in the morning and leave it all day, or at any rate, leave it until risen.
Slice and chop all the topping ingredients and mix together.
If you are using mushrooms, fry them off to remove the water, otherwise they make the pizza soggy
Assemble the pizza
When you are ready, bash the dough back and spread out onto a baking tray and leave to bounce back a little.
Spread the bbq sauce evenly over the base and top with the remaining topping ingredients
Top with the remaining topping ingredients distributed evenly
Bake the pizza
Bake in a hot oven for about 25 minutes. Bake at 200°C Fan / 220°C / 425°F / Gas Mark 7 for about 30 minutes until the base is looking golden and cooked through and the the toppings looked cooked - about 25-30 minutes
Serve the pizza
Best served immediately, although I'm sure we've all enjoyed a slice of cold pizza!