Add chai tea concentrate to an ice-filled glass. Pour milk into the glass.

Top the drink with pumpkin cream cold foam and sprinkle pumpkin pie spice over the top.

To make pumpkin cream cold foam, mix milk, cream, vanilla syrup, and pumpkin spice sauce in a mason jar and shake to combine.

Turn the mixture into cold foam right before using by frothing, mixing, or blending until it turns into a foam.

To make pumpkin spice sauce, put condensed milk, pumpkin puree, pumpkin pie spice, and salt in a medium saucepan over medium-low heat. Stir and heat for about 5 minutes until it starts to bubble.

Remove from heat and stir in vanilla extract. Pour the pumpkin spice sauce into a heat-proof jar or bowl and place it in the fridge to cool.