How to Make Chestnut Liqueur and Use It in Cocktails

Make a slit in the skin of the chestnut and roast in a hot oven. Once cooked, and while the chestnuts are still hot, carefully peel the hard exterior shell and fine skin. In a small saucepan, bring the demerara sugar and water to the boil. Simmer for two minutes then leave to cool. Once it has cooled down, add the roast chestnuts to a glass jar, top with brandy, demerara syrup and the scraped vanilla bean. Close the lid tight and give the jar a gentle shake. Place in a cool and dark spot, and gi