Preheat the oven to 180 degrees C - fan forced. Place the colby and parmesan into a food processor or Thermomix and blitz until the cheese resembles crumbs (Thermomix speed 7). Add the gluten free flour and blitz until combined (Thermomix setting 5 or 6). While the food processor or Thermomix is still going (on speed 3) slowly pour the water in. The mix should come together and be dough like. If it's still too sticky add a bit more flour.
Using a rolling pin, roll the dough out onto some baking paper (you may need to sprinkle the dough lightly with more GF flour) until it's about 2 or 3mm thick. Cut the dough into shapes using a cookie cutter or if you want to save time use a knife and cut them into squares or triangles.
Bake the cheesy crackers in the oven for about 10 minutes or until golden. Cooking time may vary depending on your oven.
Separate the crackers into some Sinchies snack bags and freeze them for lunchbox snacks!
Place into Sinchies Reusable Snack Bags