Step 1: 1- Preheat oven to 200C, Roll out the pastry into a large rectangle
Step 2: 2- Spread the pastry with a little mustard or marmite
Step 3: 3- Chop the bacon into small pieces and fry until browned and cook through
Step 4: 4- Scatter the bacon and cheese over the pastry
Step 5: 5- Roll up into a swiss roll type shape, and then cut it into roughly1cm slices
Step 6: 6- Arrange these on a greased baking tray, leaving ample space between them as they will swell and rise.
Step 7: 7- Put in oven until they become brown and crispy (Around 15mins)