Step 1 - You will need:

50 ml rum
1 banana
1 passion fruit
75 ml guava juice
25 ml mango purée
some crushed Ice
You might also need:
1 tsp guarana
1 tall glass
1 25 ml measuring thimble/shot
1 50 ml measuring thimble/shot
1 5 ml measuring bar spoon
You might also need:
1 measuring jug
some measuring spoons

Step 2 - Banana

Slice up half a banana.

Step 3 - Passion Fruit
Chop a passion fruit in half and scrape one half into the blender.

Step 4 - Rum

Add 50 ml or 2 fl oz of Rum to the blender.

Step 5 - Guava Juice

Next, add 75 ml or 3 fl oz of Guava Juice

Step 6 - Mango Purée

25 ml or 1fl oz of Mango purée

Step 7 - Guarana

and the 5 ml or 1 teaspoon of guarana, although this bit is optional.

Step 8 - Crushed Ice

If you want to make your drink a little fresher, add a little bit of crushed ice to the blender. It will make the drink a little less thick, and even more refreshing.

Step 9 - Blend

Blend the ingredients on a high speed setting for about 10 seconds until smooth

Step 10 - Pour

Pour the cocktail mix into the glass.

Step 11 - More ice

If you like, you can add a little more ice to the top it up.
HANDY HINT
Always add the ice after pouring as you don't know how full the glass will be.

Step 12 - Garnish
Put the other half of the passion fruit onto a cocktail stick, and place it into the glass. Garnish.
Serve