Start by gathering all your ingredients and measuring them out, so everything is ready to blend.
Add the frozen tropical fruit to your blender. This will be the base of your slushie, giving it vibrant color and a thick, icy texture.
Pour in the coconut cream and freshly squeezed lemon juice into the blender, adding a richness and bright acidity that balances the sweetness.
Measure and pour the aged rum into the blender, then add honey or simple syrup if you prefer a sweeter drink. Add a pinch of salt to enhance the overall flavor.
Secure the lid on the blender and blend on high until the mixture is smooth and icy, about 30-60 seconds. You'll hear the blades whirring and see the mixture turn creamy and homogeneous.
Check the texture; if it's too thick, add a splash of cold water or more lemon juice and blend again until it reaches your desired consistency. If it's too watery, add a little more frozen fruit and blend again.
Once blended to a velvety, slushy texture, pour the mixture into chilled glasses. The drink should hold peaks like snow and look invitingly vibrant.
Garnish with slices of citrus or a sprig of mint for a colorful finishing touch, then serve immediately to enjoy its icy, tropical freshness.