Actually I think I actually put in 2 tsp of bakpoeder (accidentally) but that turned out very well, they were nice and poofy so that is the only change to the recipe I'd recommend.
http://www.brendakookt.nl/2013/05/18/poffertjes/
this is a collection of our shared recipes. they are all to be executed in the style of the muppets' 'swedish chef', i.e. they are approximate indications of how you cook the dishes. So don't follow the recipe blindly but just throw together and follow your instincts and excellent cooking qualities, and all will be good!