There's a few options to get to Heart-Garden Wicked Waffles by using public transport. The easiest way is to take tram 7 and get off at either the '1e Leeghwaterstraat' or the '1e Coehoornstraat'.
Alternatively, you can take tram 26 towards IJburg and get off at station 'Rietlandpark'. From there it's only a short walk.
Click on the subway icon above to visit the English version of Amsterdam's public transport service and plan your visit in advance!