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

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

For pumpkin cream cold foam: Mix milk, cream, vanilla syrup, and pumpkin spice sauce in a mason jar and shake to combine. Keep in an airtight container in the fridge if not using right away.

Turn mixture into cold foam just before using by frothing, mixing, or blending until foamy. Alternatively, shake the mixture in a mason jar until frothy.

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

Remove from heat and stir in vanilla extract. Pour into a heat-proof jar or bowl and refrigerate to cool.