Mini creamy mushroom pies

INGREDIENTS

• 1 tsp caraway seeds
• 25g butter , plus extra for greasing
• 1 tsp olive oil
• 1 small onion , finely sliced
• 1 garlic clove , crushed
• 350g mixed mushrooms , sliced
• small handful parsley , finely chopped
• 100ml single cream
• 375g pack ready-rolled shortcrust pastry
• a little plain flour , for dusting
• 1 egg , beaten