Place the butter into the freezer
Combine the milk and lemon juice and set aside (at least 5 minutes until it becomes like buttermilk). You can also use 180ml buttermilk if you have it at hand instead of the milk and lemon juice
Preheat the oven to 230°C
Cook the bacon until crispy
In the meantime, grate the cheeses and chop the chives, followed by the bacon when ready
In a small bowl, toss together the chives, and bacon with 1 tablespoon of the flour and set aside
In a separate bowl sieve or whisk together the remainder of the flour, baking powder, and salt. Add the Italian herb mix. Grate the cold butter into the flour mixture. Use a pastry cutter or sharp small knife to cut the butter in (or do this process in a food processor)
Lightly mix through the cheese and garlic so that they are coated in flour and not clumpy
Add the milk mixture and pesto and stir just enough to bring the ingredients together. Then gently fold in the bacon and chives, making sure all the bits are nicely incorporated and distributed throughout the dough
You should have a soft smooth dough ball. If it is too sticky, turn the dough onto a floured surface and knead for about 1 minute. Try not to overwork the dough as the scones will be dense, but ensure that the dough is not too dry and not too sticky
Move the dough to a piece of baking paper or silicone baking mat and pat or roll out the dough to around 2cm thickness
Cut into approx. 4 - 5cm rounds with a cookie cutter or glass. The cleaner the cut, the more even the sides will rise up
Place the baking paper or mat with the scones onto a baking sheet
Brush the top of the scones with a little milk and bake for 12 - 15 minutes until lightly golden on top