Step 1

Bring 6 cups water to a boil in a medium pot or tea kettle. Add tea bags, cardamom, cinnamon, sugar, and vanilla extract and return to a boil. Stir in evaporated milk and return to a boil again, watching carefully to ensure the tea doesn’t boil over. Reduce heat to medium-low and simmer until thick, creamy, and caramel in color, about 30 minutes. (The longer the tea simmers the stronger and creamier it will be.)

Step 2

Strain tea through a fine-mesh sieve into mugs; discard spices and tea bags.