Kakao is a masculine noun. Remember that, in German, both the spelling of the word and the article preceding the word can change depending on whether it is in the nominative, accusative, genitive, or dative case. For further information, see Collins Easy Learning German Grammar.
'Kakao' is the definition of the awesomeness you get when you drink hot choclate in Scandinavia. Some people may refer to 'Kakao' as 'Awesomesauce' because it's that awesome feeling