Another recipe from my sis. Batida is a Portuguese word meaning 'beaten' Very yummy and if you don't like the idea of the egg white, you can substitute it with cream, it's just as tasty.
1 jigger rum
1 tsp sugar
1/4 cup of very strong cold coffee
1 egg white
Mix all ingredients in a cocktail shaker with cracked ice.
Serve with a straw and a few whole coffee beans as a garnish (optional)