Line a 9?9 baking dish with parchment paper.

Add cardamom, cinnamon, cloves, ginger, star anise, and earl grey tea to a spice grinder or food processor. Pulse to break down the spices into powder. Set aside.

Add the Rice Krispie cereal to a large bowl. Set aside.

Melt butter over medium heat. Add in the chai spice mixture and marshmallows. Mix until everything is well incorporated.

Pour the chai spiced marshmallow mixture over the Rice Krispie cereal. Mix until the cereal is well coated.

Spoon the Rice Krispie treats into the prepared baking dish and press down with a spatula so the treats are distributed evenly.

Set aside and let cool for 10 minutes before serving.