Mix the maple syrup and cornstarch together in a pan until combined

Whisk in the milk slowly over a medium heat. Keep whisking and let the mixture come to a boil for 1 minute

Turn the heat down to low and let it cook whisking constantly for another minute until smooth and thick

Take the pan off the heat and stir in the pumpkin, vanilla and spices. Add more maple syrup to taste

Divide the mixture between 4 serving dishes, cover with clingfilm and chill until cold

Meanwhile put the pecan nuts, butter and sugar in a small skillet and place on medium-low heat. Stir to coat and let them caramelize, then take the pan off the heat and spread the nuts on parchment paper to cool