Prep your ingredients in advance. Wash, hull, and chop the strawberries. Juice the lemons. Place the chopped strawberries in a blender with 1 cup of water and blend until smooth. TIP! If the water is lukewarm, it will help dissolve the sugar easily.
Pour the strawberry purée into a large pitcher. Strain if you prefer a smoother lemonade, or keep the pulp for added texture.
Stir in the raw cane sugar until dissolved.
Add the freshly squeezed lemon juice, remaining 5 cups water, and apple cider. Mix well.
Taste and adjust sweetness as needed. If using, stir in a couple drops of Angostura bitters and vanilla essence.
Chill in the refrigerator for at least 1 hour, or serve immediately over ice.
Garnish with lemon and strawberry slices before serving.
For an adult version, add dark rum, vodka, or sparkling wine just before serving.