In a microwave bowl put 2 cups cold water. Add washed mint and tea bags, submerging them under the water. Microwave on high for 6 minutes. Let stand an hour to steep (I don't always let it stand but it will taste better if it has time to steep a bit) Remove tea bags and mint, squeezing as dry as possible. Add 1 cup sugar (can add more if you like it sweeter) Pour tea syrup into one gallon pitcher. Add lemonade concentrate and fill pitcher to the one gallon mark with cold water. Serve over ice. Add fresh basil to individual glasses or to pitcher just before serving. YUM!