Sift the plain gluten-free flour into a medium mixing bowl. Add the remaining dry ingredients and mix.
Combine the wet ingredients in a bowl and mix until black and glossy.
Add the wet ingredients to the dry. Use a wooden spoon to mix into a dough, switching with your hands to bring it all together once nearly a ball.
Cover the bowl or put the dough in an airtight container. Chill for an hour in the fridge.
When you've got 10 minutes left of chilling time preheat the oven to bake 160 degree Celsius.
Flour a clean surface. Place the dough overtop and roll with a rolling pin until around ½ centimetre thick. Punch out shapes with a cookie cutter. Carefully place on a lined baking tray (you'll need to do a few rounds, but don't worry they cook quick!). I got 20 biscuits from the dough.
Bake at 160 degrees for approximately 12 minutes, or until the edges are set but the centres are still slightly soft.
Remove from oven, leave to cool for 5 minutes on the tray - they will continue to firm up as they cool. Gently transfer to a cooling rack to cool completely.
Once completely cooled, melt white chocolate until smooth.
Dunk each gingerbread in the white chocolate a little less than half-way up their body. As you go, place back on the lined baking tray. I tend to dunk just the front side, so they'll sit flat on the tray.
Place the trays in the fridge for the chocolate to harden.