In a medium bowl, mix the sourdough discard with the melted butter until uniform. Add in the spelt flour, salt and if using the black pepper and cheese, mix together until a smooth dough ball is formed.
100 g sourdough discard, 50 g spelt flour, 25 g unsalted butter, ¼ teaspoon kosher salt, 15 g finely grated cheddar, ½ teaspoon freshly ground black pepper, 15 g mixed seeds, 1 tablespoon chives, 1 tablespoon herbes de provence, 15 g grated parmesan, 1 teaspoon garlic powder, 1 teaspoon chilli flakes