01 - Rinse fresh peppermint leaves thoroughly under cold water.
02 - Bring 2 cups of water to a gentle boil using a small saucepan or kettle.
03 - Place peppermint leaves in a teapot or directly into heatproof mugs.
04 - Pour the boiling water over the peppermint leaves, cover, and steep for 5 minutes.
05 - If using loose leaves, strain the infusion into cups.
06 - Stir in honey or agave syrup if desired, and garnish with a lemon slice. Serve hot.