Step 1

Place strawberries in a blender with half the juice from the lemons. Pulse until pureed. Transfer to a large bowl. Stir in 2 cups of the water and sugar, stir to dissolve the sugar.

Step 2

Place the pineapple in the blender with the remaining lemon juice and some water if needed. Blend until smooth, add to the strawberry mixture. Add in the rest of the water. Stir well and refrigerate. Serve cold over ice with lemon slices and basil to garnish if desired.

Step 3

Transfer to a pitcher or thermos for a picnic.