I love this chai latte iced, but you could also enjoy it warm. Simply combine the chai tea, pumpkin purée, sweetened condensed milk, and ½ teaspoon of the pumpkin pie spice in a small saucepan and heat, stirring often, until hot. Pour the mixture into a mug and top with steamed milk, spooning the foam on top. Sprinkle with the remaining pumpkin pie spice.