Matcha Watermelon Previous Next Recipe Ingredients Matcha powder – 1 stick ( 0.07 oz ) Simple syrup – 1 oz Watermelon juice – 5 oz Sliced lemon (optional) Directions Put ice and watermelon juice in a glass and mix. Mix matcha powder with the simple syrup until there are no lumps. Pour the matcha syrup slowly over the top and serve!