Prep time: 5 minutes
Total time: 10 minutes
1 1/2 ounce rum, preferably Bacardi Carta Oro
3 teaspoons granulated sugar
5 whole allspice berries, smashed
1 banana, peeled and sliced
1/2 cup simple syrup
4 tablespoons fresh lime juice
1. In a small skillet, heat 1 ounce|30 ml of the rum, the sugar, allspice, and banana over medium-high. Cook until the bananas are soft, about 3 minutes. Remove from heat and cool slightly.
2. Add the remaining ingredients and blend until smooth.
3. Add in about 5 ounces|142 grams ice and blend until silky and smooth. Transfer to a collins glass and serve immediately.