Pie floaters

Name: Pie floaters
Prep time: 25 min
Cook time: 1 h 15 min
Total time: 1 h 40 min
Cuisine: Australian, British
Ingredients: 27.30 gm olive oil; 1 brown onion, finely chopped; 500g beef mince; 70g (1/4 cup) tomato paste; 40.00 ml plain flour; 375ml beer; 375ml (1 1/2 cups) chicken stock; 2 tsp Vegemite; 62.50 ml chopped fresh continental parsley; 1/2 brown onion, extra, finely chopped; 1 (about 100g) golden delight potato, peeled, finely chopped; 300g (2 cups) frozen peas; 20.00 ml chopped fresh mint; 750ml (3 cups) chicken stock; 4 sheets frozen butter puff pastry, just thawed; 20.00 gm creme fraiche