Make your easy keto caramel sauce according to the directions but just before finishing it, add 1 tsp arrowroot starch to help thicken the sauce. Pour it into a small measuring cup or bowl and refrigerate it to help it thicken faster.
Pre-heat oven to 350*F.
In a large bowl, beat together your butter and sweetener until light and fluffy. Add your egg and extracts and beat once more until combined.
In another bowl, whisk together all of your dry ingredients including; almond flour, coconut flour, arrowroot starch, xanthan gum and salt.
Pour the dry ingredients into the wet and stir well until the dough becomes thick and everything is incorporated together.
Grease a mini muffin pan, then begin rolling the dough into balls about the circumference of the muffin tins (see photo). Place one in each tin.
Use your thumb to gently create a dent in the center of each one, slightly pushing it up the edges of the tin.
Bake the cookie cups for ~7-9min or until just golden brown around the edges.
Use a rolling pin or end of a wooden spoon to make a dent in the center of the cookie cups once again while they are still hot. Make sure you don't press all the way to the bottom. Then let them cool fully.
While the cookie cups are cooling, you can make the chocolate ganache. Place the chocolate chips and butter in a bowl then heat up the heavy cream on the stove top or in the microwave until it's steaming hot (don't boil) and pour it oven the chocolate chips and butter.
Let this sit for 1min before stirring in the vanilla extract. Continue to stir until the entire mixture becomes a dark chocolate colour and everything is melted and smooth. Set this aside at room temperature to cool and thicken.
Gently tap the muffin pan upside down to knock out the cookie cups. Place the finished cookie cups on a new baking tray to be filled. Spoon some of your chilled caramel sauce into the center of each caramel cup (heat it up a little and give it a few stirs if you find it too difficult to spoon out as is). Play the tray in the fridge for 10-15min if your caramel was still quite warm to help it set a bit.
Once your chocolate ganache has thickened enough to a pudding/frosting consistency, you can place it in a piping bag. I use a plastic piping bag for this. Use a large fitted flower piping tip to top each cookie cup OR use a large plastic ziplock with the corner cut-off to pipe small Hershey kiss shapes onto each one if you do not have a piping bag and/or flower tip. Let the ganache and caramel harden slightly at room temperature then enjoy your Keto Twix Cookie Cups!