To create the pumpkin spice base for your latte, in a saucepan mix together your pumpkin puree, cinnamon, ginger, and nutmeg together on low heat until even in color. You can store and use this for lattes up to two weeks.
Add in your oatmilk, brown sugar, and masala chai to the saucepan and brew for 5 minutes on low heat. Continuously stir with a whisk until the puree is dissolved and fully incorporated into the milk.
Remove from heat and add vanilla extract to latte mixture. Whisk together.
Serve and enjoy.
Add a layer of frothed milk to the top of your pumpkin chai latte by simmering 1/3 cup of milk until hot. Whisk the milk until froth forms and slowly pour or spoon onto your latte. Sprinkle some cinnamon over and garnish with a piece of cinnamon stick for a picture perfect pumpkin spice latte.