Preheat oven to 350°F and line two baking sheets with parchment paper.
In a large bowl, whisk together tahini, brown sugar, and granulated sugar until smooth and well combined.
Add the egg and vanilla extract to the tahini mixture and whisk until fully incorporated.
Add almond flour, cocoa powder, baking soda, and salt, stirring until a thick dough forms.
Fold in the dark chocolate chips until evenly distributed throughout the dough.
Scoop tablespoon-sized portions of dough and roll into balls, placing them 2 inches apart on prepared baking sheets.
Gently flatten each ball slightly with the palm of your hand.
Bake for 11-12 minutes until edges are set but centers still look slightly underdone.
Let cool on baking sheet for 5 minutes before transferring to a wire rack to cool completely.