Apple & Raspberry pie

I am not a pastry maker. I usually cheat and buy some ready made frozen stuff! So, I thought I'd give it another go after several years of abstaining! I've got to say I was pleased with the result and it was easier than I remembered.  Here's the recipe for a tasty apple and raspberry pie. 

3 large cooking apples, peeled cored and chopped
100g raspberries 
4oz softened butter cut into small cubes
8 oz plain flour
3oz sugar
1 egg beaten
Splash of milk

1) place the apples in a large pan and cover the bottom of the pan with a small amount of water. Bring to the boil and then simmer until the apples have started to soften the turn off the heat and put to one side
2) grease a large Pyrex dish and add the apples (drain off any excess juice) and sprinkle the raspberries on top
3) put the butter in a large bowl then add the flour and rub into crumbs
4) stir in the sugar, and then mix in the beatened egg to make a dough. If needed add a splash of milk
5) need the dough and roll out and place on top of the fruit
4) brush with a beaten egg or milk and pop in the oven for 30 mins until the top has browned