Peel the outer skin of the yellow onions and use a mandolin slicer to slice the onions very thinly.(This will be a lot of onion slices but they cook down a lot don't worry!)
Use a large 4 quart size pan on the stove over medium heat to warm up the olive or avocado oil.
Once the oil is heated, add the onion slices and stir and sauté for a few minutes until they turn somewhat translucent.
Reduce the heat down to low-medium and let the onions cook for about 45 minutes to 1 hour. Be sure to stir the onions every 10 minutes or so.
While the onions are caramelizing, make the crust dough by first adding the gluten free flour and almond flour to a food processor.
Cut the vegan butter into small chunks and add to the food processor. Process the flours and butter until a crumbly consistency forms.
Add in the cold water and process until a dough consistency forms which takes less than a minute usually.
Divide the dough into 6 balls and then press the dough into 6 four inch tart dishes.
Poke some holes in the dough using a fork and then place the tart dishes on a sheet pan and bake for about 20-25 minutes(or until slightly golden) at 350 degrees.
The onions should be cooking down a lot and caramelizing by the time the crusts are done baking. They will be done once they turn a brown colors and are a bit sticky. Add some balsamic glaze to the onions at the very end of them caramelizing.
Once the crusts are done baking, take them out and then fill each once with some of the caramelized onions. Set the tarts aside to cool down for a few minutes.
Make your whipped goat cheese by adding the Dare vegan herbed goat cheese into a food processor. Process for about 1 minute or until smooth.
Pipe the whipped goat cheese on top of the caramelized onion tarts and then add some fresh thyme or rosemary on top to garnish.
Enjoy right away or save in the fridge for up to 5 days.