Pheasant & mushroom pastry puff slice - Master recipes

Ingredients

• 1 tbsp olive oil -
• 20g butter -
• 2 thyme sprigs , leaves picked -
• 5 rashers smoked streaky bacon , finely chopped -
• 2 garlic cloves , finely chopped -
• 3 large shallots , finely chopped -
• 8 mushrooms (preferably wild, oyster or chestnut), finely chopped -
• 100g left-over pheasant meat, finely chopped -
• 1 tbsp fino sherry or white wine -
• 4 tbsp crème fraîche -
• 320g ready-rolled puff pastry sheet -
• plain flour , for dusting -
• 1 egg mixed with 2 tsp milk (to make an egg wash) -
• 1 tsp nigella seeds -