Whole Wheat Bread with Seitan Chouriço and Olives

For 2 loaves:
Strong wheat flour (250g)
Whole-wheat flour (250g)
Salt (1 tsp)
Demerara sugar (1 tsp)
Fast-action Dried Yeast (4g)
Extra flour for dusting
Water (300ml - tepid)
Black Olives (15 - pitted)
Seitan Chouriço (100g)

1) Stir the flours and salt together in a large bowl, then make a well in the centre and add the water, salt, sugar and yeast and stir.
2) Mix with until the mixture comes together.
3) Transfer the dough to a work surface and knead until smooth and elastic. Fill the dough with the olives and the chouriço and sprinkle with oreganos and black pepper.
4) Shape it in two loaves and leave it in a warm place for at least two hours or until it has doubled in size.
5) Preheat the oven to 180C.
6) Bake the loaf for 20 minutes or until golden brown and crusty. The base should sound hollow when tapped. Cool on a wire rack.