2Add flour, butter, baking powder, mustard, and grated cheese to a food processor.
3Mix the ingredients in the food processor until they resemble breadcrumbs.
4Crack an egg into a measuring jug.
5Add milk to the jug to make it up to 160 ml and whisk to combine.
6Slowly add the milk mixture to the flour in the food processor and mix until you have a soft but firm dough. Keep one spoon of the milk for brushing the scones.
7Transfer the dough to a lightly floured worktop.
8Roll out the dough.
9Cut out the scones using a scone cutter.
10Place the cut scones onto a lined baking tray.
11Brush the top of each scone with the reserved milk.
12Sprinkle some paprika on top of the scones (optional).
13Top with some grated cheese.
14Bake the scones for 10-15 minutes until they’ve risen and turned a nice golden color.