Start by gathering all your ingredients on a clean countertop. Chop the fresh pineapple into chunks for muddling. Ensure the mint leaves are washed and ready for use. Cut the lime in half for juicing while keeping the other half for garnish.

In a sturdy glass, add the pineapple chunks and mint leaves. Use a muddler to gently press down on the ingredients, releasing the juices and oils. Be careful not to over-muddle, as this can make the mint taste bitter. Aim for a fragrant mixture that has a good infusion of flavors.

Sprinkle the sugar over the muddled mixture to balance the flavors. Squeeze the juice of one lime half directly into the glass. Stir gently to combine the ingredients, allowing the sugar to dissolve. Make sure the mixture is well-blended before moving on.

Measure and pour 4 ounces of white rum into the glass with the muddled mixture. Stir gently to integrate the rum with the other ingredients. Ensure the rum is evenly distributed throughout the mixture. This step enhances the drink's depth of flavor.

Fill the glass with ice cubes, leaving a little space at the top. Crushed ice can also be used for a more slushy texture. Make sure the ice is packed but not overflowing. This will keep the cocktail cold and refreshing.

Pour club soda over the ice until the glass is nearly full. This adds a refreshing fizz to the cocktail. Use a spoon to gently stir the drink without disturbing the mint and pineapple too much. The club soda should be added last to maintain the bubbles.

Add a pineapple wedge and a sprig of mint for garnish on the rim of the glass. This enhances the visual appeal of the cocktail. Serve immediately with a straw for easy sipping. Enjoy the refreshing flavors of your Tangy Pineapple Mojito.

Take a moment to appreciate the vibrant colors and aromas of your cocktail. Sip slowly to enjoy the blend of flavors and refreshing qualities. Sharing this drink with friends can enhance the experience. Remember to drink responsibly and savor each sip.