1. Preheat your oven to 180°C and line a baking tray with baking paper.
2. In a large bowl, combine the wholemeal flour, salt, baking soda, brown sugar (if using) and Greek yoghurt. Stir until a dough starts to come together.
3. Turn the dough onto a lightly floured bench and knead gently for 5–10 minutes until smooth.
4. Divide the dough into 8 equal portions and roll them into neat balls. Place them on your lined tray.
5. Optional: Brush the tops with egg wash and sprinkle over your seed mix for an extra crunch.
6. Bake in the oven for 15-20 minutes. Knock on the base of a roll, if it sounds hollow then they are ready.
7. Cool on a wire rack before serving.