Preheat oven to 220°C bake.
Place bacon on a lined oven tray. Brush with maple syrup and bake in the oven for 6-8 minutes, or until crispy and sticky. Once cooked, roughly chop.
Place scone mix in a large bowl with a pinch of salt. Using fridge-cold butter, dice into cubes. Add to bowl and rub mixture between your fingers until it resembles a fine crumb.
Add milk to bowl and use a butter knife to combine mixture into a shaggy dough. Then incorporate bacon. Be careful not to over-mix the dough as this will create a tough scone.
Melt butter. Dust a rolling pin and a clean bench space with flour. Place dough onto bench and form into a circle, rolling 4cm thick. Transfer to a lined baking tray and cut circle into 8 slices, spreading out slightly. Brush scones with melted butter and sprinkle with cinnamon sugar. Bake for 10-12 minutes, until slightly golden.
Serve warm with butter and drizzle over any extra maple syrup.