To make the popular combo of iced tea and lemonade you must first brew tea, then add lemonade, and adjust it to just the right sweetness. You can also resort to one of those powder mixes containing ingredients you can’t pronounce. Or get Connecticut-based Bigelow Tea’s new iced tea bags, which contain black tea, lemon, and natural sweeteners. Steep one Half Iced Tea & Half Lemonade quart-size tea bag ($3 for 6 quart-size bags) in 1 cup of boiling water for a few minutes, add 3 cups of cold water, and serve over ice for a refreshing summery beverage.   Available at most Hannaford and Stop
& Shop supermarkets, or go to www.bigelowtea
.com. LISA ZWIRN