1Toss beef cheeks in flour. Heat olive oil in a pan and brown the meat in batches. Remove and set aside.
2In the same pan, sauté onion, carrots, celery, and garlic for 5 minutes. Add tomato paste, ale, beef stock, thyme, and bay leaf. Return the beef to the pot. Put the pan/pot into the oven at 150°c for 3-4 hours or until spoon tender.
3Cut potatoes into similar sizes, put them into cold water with a good pinch of salt, bring to a boil. Boil for 8 minutes then remove and let them cool down. Bring your oil up to temp for the first cook which is at 115°c and cook for 10-12 minutes. Remove and set aside, bring the oil temp up to around 180°c and put the chips back in until golden brown.
4Preheat oven to 200°C. Spoon the filling into the pie dish. Cover with puff pastry, trim the edges, and brush with beaten egg. Bake for 25-30 minutes until golden.
5Pour peas into a pan, bring to a simmer and let it reduce, when it's reduced by half add in a knob of butter, a handful of mint, sprinkle of salt and a squeeze of lemon.
6Make some gravy, plate it all up, get it in your mouth and be happy.