Lemonade is the only thing we normally have in the house to drink, besides water. The kids drink milk at mealtimes only.
Frozen lemonade is so refreshing on a hot summer day.
1 cup sugar
1 envelope unsweetened lemonade drink mix
1/2 cup water
Place the sugar, drink mix, and water into the blender. Fill with ice. Blend until desired consistency.
You may have to adjust the water, and use more if your blender doesn’t do well with only ice.
Of course, you could use real lemon juice, I find it more convenient to use powdered drink mixes, then to keep lemons in stock.
You could use any flavor of drink mix that your kids like, (I just choose to keep the food coloring that the kids ingest to a minimum)and it would be like a slushie.