Preheat the oven to 220°C (425°F) Gas mark 7. Dry the pork with kitchen paper. Tip the vegetables and herbs into a roasting tin and season with salt and pepper, then drizzle over a little oil. Rub a little more oil over the pork and season all over, then put in the middle of the vegetables. Add a splash of wine or stock and roast for 25 minutes.
Reduce the heat to 180°C (350°F) Gas mark 4 and add another splash of wine or stock. Roast for 1 hour or until the pork is tender and cooked through. Transfer the pork to a warm plate and leave to rest for 20 minutes covered with tin foil and a clean tea towel.
Meanwhile, make the Bramley apple sauce. Peel and dice the apples and put in a small pan with the lemon juice and sugar. Add two tablespoons of water and heat gently for 4-5 minutes until the apples are soft. Add the butter and beat with a spoon until nearly smooth, leaving a few chunks, then season to taste with salt. Leave to cool.
Carve the pork into slices and arrange on warmed plates with the roast potatoes and vegetables. Add a good dollop of the apple sauce to each plate to serve.