Mini meat pies with prune sauce

I was in a mood for prunes, but didnt want anything too sweet. So that is what came out of it.

 puff pastry sheets
300g minced beef
1 small red onion
2 garlic cloves
1 carrot
250ml beef stock
90ml red wine

Sauce:
150g prunes
app.150ml water
1 tb.s. sugar
lemon zest
juice of 0,5 lemon
cinnamon
some red wine

Cook onion, garlic and carrot on olive oil, add beef and cook until a bit golden, pour wine and wait, until it evaporates, then pour some stock. Season with pepper.
Oil muffin forms, cut pastry into squares, place each in every muffin form, then meanced meat, and cover with another piece of dough. Sprinkle with milk on top and bake at 180 for 25 minutes.
Take them out and serve with the sauce.
Sauce: cover prunes with water, add zest, cinnamon and juice and simmer, until they become soft and liquid evaporates. Let it cool, then blend and pour some wine to make it more liquid. Boil one more time, now it can be served.