Put the chops in an oven-proof baking dish (no lid necessary).
Squeeze the lemon juice over.
Sprinkle with salt and crushed black pepper.
A few rosemary sprigs can also be added in between or under and on top of the meat to enhance the flavour.
Put in the oven for at least 5-7 hours at 90-100C. If it is not crispy/roasted enough to your liking, it can be turned to 140C for 30 minutes.
If your time is short, you can put the oven to 125C for 4-5 hours. I prefer the longer method, though, as it renders a tenderer chop.
Notes
When it happens that you forget to defrost the meat, you can put the chops in the oven whilst still frozen. It will just need a longer time to bake (approximately 8 hours), but works just as well.