Put all the ingredients except maple syrup, the jam and fruit powder into a food processor. Maybe crumble the speculoos a little bit before adding them to the food processor. Mix in the food processor until you get a crumbly batter.
If you feel the mixture isn`t sticking together enought add maple syrup, but try first if your batter isn`t already sweet enough. I added the two tbsp of maple syrup and the donut holes turned out quite sweet.
Form balls with your hands, press a hole into every ball and pour in a small amount of jam. Close the balls immediately, add a little bit more of batter if necessary.