Boil Spices and Tea : In a small saucepan, combine 1½ cups of water, cinnamon stick, cloves, cardamom pods, ginger, and peppercorns (if using). Bring to a boil over medium heat, then reduce to low and simmer for 5 minutes. Add tea bags or loose-leaf tea and steep for another 3–4 minutes.
Sweeten the Chai : Remove from heat and strain the tea mixture into a bowl or directly into serving mugs. Stir in maple syrup while the tea is still hot so it dissolves easily.
Prepare the Milk Froth :In a separate saucepan, heat 1 cup of milk until hot but not boiling. Use a handheld frother, whisk, or blender to froth the milk until creamy and airy. Stir in vanilla extract if desired.
Assemble the Latte : Pour the chai base into mugs (about two-thirds full). Top with the frothed milk. Optionally, drizzle a small swirl of maple syrup on top or dust with cinnamon.