Bring 2 cups of water to a simmer in a small saucepan, then remove from the heat.

Add the green tea bags or loose-leaf green tea and steep for 3 to 5 minutes, depending on how strong you want the flavor.

Remove the tea bags or strain out the loose tea leaves, then stir in the sugar until dissolved.

In a small bowl, sprinkle the gelatin over 2 tablespoons of cold water and let it sit for 1 to 2 minutes to bloom.

Stir the bloomed gelatin into the warm tea mixture until completely dissolved.

Pour the mixture into serving glasses or a shallow dish and let it cool to room temperature.

Refrigerate for at least 3 to 4 hours, or until fully set.

Serve chilled, plain or topped with whipped cream, fruit, or mint if desired.