This easy SLUSHY LEMONADE Recipe. Step-by-Step. is perfect for busy families. Comes together quickly with a few staple ingredients! INGREDIENTS1?2 cup water 4 cups ice cubes 1?2 cup lemon juice concentrate (like REALemon) 1?2 cup sugar DIRECTIONSIn blender, combine lemon juice concentrate, water, and sugar. Gradually add the...