Preheat the oven to 350°F and line a baking sheet with parchment paper.
In a bowl, mix together the tahini, maple syrup, and vanilla extract until well combined.
Add the almond flour, gluten-free flour, and baking powder to the wet ingredients, and mix with a spatula.
Fold in the chocolate chips and chunks until evenly distributed throughout the dough.
Use a double cookie scoop to portion the dough onto the prepared baking sheet. Flatten the tops with your palm, as the cookies won't spread much during baking.
Bake for 12-14 minutes, then immediately sprinkle with flaky sea salt after removing from the oven. Let cool for 5 minutes before enjoying!