Asparagus and ricotta pizze bianche

1.For pizza dough, combine olive oil, yeast, sugar, ½ tsp salt and 320ml lukewarm water in a bowl and set aside until foamy (2-3 minutes). Gradually add flour, mix until a rough dough forms, then turn out onto a lightly floured surface and knead until smooth and elastic (6-8 minutes; the dough will be quite soft and sticky). Place in a lightly oiled bowl, cover with plastic wrap and set aside until doubled in size (1-1½ hours). Knock back dough, knead briefly, then cover and leave until doubled in size (45 minutes to 1 hour).

2.Meanwhile, preheat oven to 250°C and place 2 heavy-based oven trays in oven to heat. Combine olive oil, thyme, garlic and lemon rind in a bowl and season to taste.

3.Divide dough into quarters, then form each into a 30cm round with the palm of your hand or a rolling pin and place each on a piece of baking paper. Brush with a little oil mixture and scatter with even amounts of asparagus, then mozzarella. Spoon dollops of ricotta on top, drizzle with a little extra oil mixture and season to taste. Bake in batches on heated trays, using baking paper to slide them on and swapping trays halfway through cooking, until golden brown and cooked through (6-8 minutes). Serve pizze hot with extra ricotta spooned in the centre of each and drizzled with extra oil mixture.