Toffee pear galettes

INGREDIENTS

• 1 sheet of fresh or frozen ready-rolled puff pastry , cut into 4 circles
• 2 tbsp dulce de leche (or other toffee sauce - look for Merchant Gourmet Banoffee Toffee near the jam in supermarkets)
• crème fraîche , to serve
• 2 small, ripe pears , halved, cored and thinly sliced to make a fan shape (leave joined at the stalk end)
• 1 egg , whisked to glaze