01 - Preheat oven to 350°F. Line two baking sheets with parchment paper.
02 - Whisk together gluten-free flour, baking soda, and salt in a medium bowl. Set aside.
03 - Beat tahini, softened butter, brown sugar, and granulated sugar in a large bowl until creamy and smooth, approximately 2–3 minutes.
04 - Add egg and vanilla extract to the wet mixture. Mix until fully incorporated.
05 - Gradually add dry ingredients to the wet mixture, stirring until just combined.
06 - Fold chocolate chips into the dough until evenly distributed.
07 - Scoop heaping tablespoons of dough onto prepared baking sheets, spacing approximately 2 inches apart.
08 - Lightly flatten each dough ball and sprinkle with flaky sea salt.
09 - Bake for 10–12 minutes until edges are golden and centers remain slightly soft.
10 - Let cookies cool on baking sheet for 5 minutes, then transfer to wire rack to cool completely.