Place the boiling water in a small bowl with the chai tea bag and chai spice. Allow the chai concentrate to steep for 10 minutes.
1/4 cup (60 ml) water, 1 chai tea bag, 1/4 teaspoon chai spice
Carefully squeeze the tea bag (be careful as it'll be hot) to extract all of its flavors, and whisk the chai concentrate to ensure the spices are fully combined.
Warm the milk and maple syrup (either in the microwave or a small pot over medium heat on the stove) just until it begins to steam. For dairy milk, the best temperature for frothing is 140-155 °F (60-68 °C) and for plant-based milk, it's 150 °F (65 °C).
1/2 cup (120 ml) milk, 1-2 tablespoons maple syrup
Froth the milk using your favorite method – a handheld frother, a wand, in the blender, etc.
Add the chai concentrate to your mug and top with frothed milk. Garnish with a sprinkle of chai spice and enjoy immediately.