it's a try for pi day. turned out very well so i thought i'd share. makes 7.

Step 1: Ingredients

Filling:
500 grams Bramley apples (apples for apple pie or apple sause)
70 grams golden caster sugar
½ tsp cinnamon

Pastry:
112 grams butter , room temperature (if you can’t be bothered microwave it for abit)
25g golden caster sugar , plus extra
2 eggs
175g plain flour

Tools:
Oven
Baking sheet
Rolling pin
Muffin tin
Cookie cutter/glass/cup (one the seize of the muffin hole and one twice that seize
Pi cookie cutter/knife (you can cut them out yourself with a knife like i did.

Step 2: The Apples

Peel, core and dice the apples. I recommend not making the pieces any bigger that 1cm cubed. Preferably smaller (not like i did. It makes them neater)
Lay them out on the cookie sheet with paper towels on it.

Step 3: The Pastry

Beat the butter and sugar together until just mixed. Add one egg and one egg yolk (safe the white for glazing) beat until it’s like thick pancake mix.
Add flour. I recommend doing it in parts as that’s easier and less likely to get lumps. The last bit you’ll have to do with your hands. Wrap the pastry in cling film and chill for 40-45 minutes

Step 4: Apple Mix

While that is chilling make finish the filling by mixing the rest of the sugar (of the filling part) with the cinnamon (add more or less to taste). Then mix in the apples.

Step 5: Finishing

Roll out the pastry thinly and cut out the shapes as pictured. (on the size of the muffing hole, one twice that size and one the shape of pi.
Put the one twice as big into a (greased, optional) muffin hole and push in and around the sides. Put the apple filling in it. seal with the other pastry and add the pi-shaped piece on top. Put a few holes in the top (around pi) with a knife.
Brush with the egg white
Repeat with the rest of the pastry (I got exactly 7 out of this recipe)
Bake for 25 minutes or until slightly golden.
Let them sit in the tin for about 5 minutes (to cool a bit) and then move to a wire rack.