40min · 10 servings Ingredients: • 350g self raising flour • 2 tsp baking powder • 80g butter, cold and cubed • 50g mature cheddar, grated • 50g gruyere, grated • 50g parmesan, grated • 10g chives, finely chopped • 250ml buttermilk (or diluted natural yoghurt) • 50g gruyere, cut into 10 small cubes • Splash of whole milk Instructions: • Preheat oven to 180C. Line a baking tray with baking paper. • In a large bowl mix together the flour and baking powder. Add the cold cubed butter and rub together until it resembles fine breadcrumbs. Next add the grated cheese and chopped chives and mix again. Finally add the buttermilk and mix to combine. Tip the dough onto a lightly floured surface and gently knead just until the dough comes together and is smooth. Roll this out to ro