Step 1

Combine the water, honey and fresh yeast and stir. Pour into flour and stir until homogeneous. Cover with cling film and leave to rest at room temperature overnight (8-12 hours). Have a bowl large enough for the mixture to double in size. If using instant yeast, mix the yeast with the flour and stir in water and honey mixture.

Step 2

Combine the water and flour and pour in the mature poolish, which should have a light spongy and bubbly texture. Stir with a wooden spoon or a spatula to combine. When the dough is starting to come together, add the salt and flip onto a lightly floured surface. Knead the dough until uniform, it sould feel elastic but not sticky. Add 2 tbsp olive oil if you wish. Place dough back into the bowl, cover with cling film and let rise for a minimum of 3 hours. Have a bowl large enough for the dough to double in size.

Step 3

To make the pre-ferment combine 200 g flour, 200 ml water and 60 g active sourdough starter. Cover with cling film and let rest for 8-12 hours.The following day, combine 500 g flour, 180 g water and the mature sourdough pre-ferment. Add 20 g salt only when the dough is starting to come together. Knead until firm and not sticky and put back into the bowl, covered. Let rise until doubled in size, for a minimum of 4 hours at room temperature.