Cointreau is a good choice because the subtle orange flavor won’t overpower the fresh lime.
Matcha is a powdered green tea that’s high in antioxidants; you’ll find it in most large natural grocery stores or Asian markets.
The combination of cool mint and hot chile will wake up your palate while delivering anti-inflammatory and antioxidant goodness to your body. If you prefer milder heat in your morning drink, replace the chile with a teaspoon of freshly grated ginger or a little freshly ground black pepper. Frozen peaches will also work well here.