In a large bowl mix together the strong white bread flour, salt and yeast
Mix the milk, water and oil together in a jug, and add to the bowl of flour
Mix the ingredients together until a dough forms, then knead by hand or in a mixer fitted with a dough hook for 10 minutes until it becomes a smooth and soft dough
Put the dough into an oiled bowl covered with cling film and leave it somewhere warm for 1 hour until it has doubled in size
Knock the dough back on a floured surface, then cut the dough into 12 equal pieces
Roll each piece of dough out into long, thin sausage about 18" long
Twist each piece into the 'pretzel loop' by crossing over the two ends, then twisting them around and bringing them back on each other. Secure the ends by pressing gently
Pre-heat your oven to 180C Fan/200C/400F/Gas Mark 6, line two baking trays with baking paper and get a pot of water boiling on the stove. Add the Bicarbonate of soda to the boiling water
Boil each pretzel for 20 seconds, then place onto the baking trays. Use a slotted spoon or spatula to lower them into the water and fish them out
Brush the beaten egg over the pretzels, then sprinkle on the sesame seeds and rock salt
Bake the pretzels for 20 minutes until golden brown
For the sweet pretzels, once they have finish baking brush them with the melted butter, then sprinkle the cinnamon sugar over them generously and leave to cool