Pour all ingredients except sprite and grenadine into a glass. The orange pieces are then muddled so that their juice is released. Fill halfway with crushed ice. Stir the glass (churn) so that everything is mixed together and the orange pieces do not lie on the bottom. Fill with crushed ice and top with Sprite. Then pour grenadine on top to create a cool look.
Make it non-alcoholic
A Miami Heat is a cocktail with a lot of ingredients, each of which has its own unique taste. This means that the rum fades into the background, and means that this cocktail can do very well as non-alcoholic. All that needs to be done is to simply remove the rum when making it.
There is no spirit more suited to pirates than rum. Not because it is closely associated with seafaring, nor because it is part of pop culture, but because rum is completely resistant to rules. The different styles of rum vary depending on where the rums come from, how they are distilled, and how they are aged (if at all). The only thing that connects different types of rum is the basic ingredient: sugar cane.
Read more about rum