Preparation:

1. Place the diced pineapple in a blender. Add water and sugar. Blend until smooth.

2. Pour the pureed pineapple through a fine sieve into a large bowl or pitcher to separate the juice from the fruit pulp. Gently press the pulp with a spoon or spatula to extract as much juice as possible.

3. Add the freshly squeezed lemon juice to the pineapple juice mixture and stir well.

4. Pour the pineapple and lemon juice into glasses, about halfway full. Top with sparkling water for a fizz.

5. Add ice cubes to the glasses and garnish with fresh mint, if desired.

6. Stir well before serving and enjoy!

 Serving suggestion: This refreshing pineapple lemonade is perfect for warm summer days. It can also be prepared in a large pitcher and served at a garden party. For a special touch, add a splash of rum or vodka for an alcoholic version.