1 pound fresh strawberries, hulled and halved
1 (17.5 ounce) can coconut water
2 cups ice
2 (1.5 fluid ounce) jiggers rum, or more to taste
1 tablespoon white sugar, or more to taste
1 teaspoon vanilla extract
Blend strawberries, coconut water, ice, rum, sugar, and vanilla extract together in a blender until frozen and slushy.