TESTED & PERFECTED SPLENDA LEMONADE Recipe. Step-by-Step. is perfect for busy families. Comes together quickly with a few staple ingredients! INGREDIENTS1 cup Splenda sugar substitute 1 cup lemon juice (bottled works fine) 1?4 cup lime juice (again, bottled works fine) 2 quarts water DIRECTIONSCombine first 3 ingredients and...