Brew a strong chai concentrate by bringing 2 cups of water to a boil in a saucepan. Remove from heat, add the chai tea bags, and let steep for 5-7 minutes until dark and fragrant. The stronger the brew, the more prominent the chai flavor will be in your final mocktail.
Remove the tea bags and squeeze gently to extract maximum flavor. If using loose tea, strain the liquid through a fine-mesh sieve.
Return the chai concentrate to low heat and add milk, honey/maple syrup, vanilla extract, cinnamon, nutmeg, and cardamom. Whisk gently until the mixture is warm and the sweetener has completely dissolved—don’t allow it to boil as this can affect the texture.
Taste and adjust the sweetness or spice levels according to your preference. This is your chance to customize the flavor profile—more honey for sweetness, more spice for warmth.
For a cold mocktail, transfer the mixture to a container and refrigerate until thoroughly chilled, at least 2 hours or overnight for best flavor development.
When ready to serve, fill glasses with ice (if serving cold), pour the chai mixture until glasses are ¾ full, and stir gently to chill.
Top with a dollop of whipped cream if desired, and dust with a sprinkle of cinnamon. Garnish with a cinnamon stick that can double as a stirrer.
For a warm version, skip the refrigeration and ice steps, heat the mixture until steaming (not boiling), and serve immediately with the same garnishes.