Peel and core the apples, then cut them into small dice.
2 pounds (900g) apples
Heat the butter in a medium/large pan over medium-high heat, then add the apples. Don’t stir for the first 2–3 minutes — let the apples brown on the bottom. Then stir in the sugar and raisins. Cook for 5–10 minutes, or until the apples are soft but not falling apart. The cooking time will depend on the apple variety — whether they’re firm, soft, or watery. The filling should not be watery. If your apples are too dry, add a splash of water to stew them.
2 tablespoons butter, 2 tablespoons brown sugar, ¼ cup raisins
Add the spices and salt, and cook for 1 more minute.
¾ teaspoon cinnamon, Pinch of ground ginger, Pinch of ground allspice, Pinch of ground nutmeg, Pinch of ground cloves, Pinch of salt
Season with lemon juice — the amount depends on the apple variety. I used ½ tablespoon with Gala apples, which are on the sweeter side.
½ tablespoon lemon juice
Transfer the filling to a plate and let it cool completely. The filling must be cool or cold — warm filling will soften the dough and make it hard to work with.