Preheat the oven to 180°C and line a baking sheet with parchment paper.
In a large stand mixer bowl, with a paddle attachement, combine the butter, white sugar, light brown sugar, tahini paste and vanilla extract. Mix until well incorporated. Add the eggs one at a time, mixing well after each addition until the mixture is creamy.
In a separate medium-sized bowl, whisk together the flour, baking soda, and sea salt.
Gradually add the dry ingredients to the wet mixture, stirring until just combined.
Fold in the chopped chocolate and Medjool dates into the batter until evenly distributed.
Using a small cookie scoop or spoon, drop dough onto the prepared baking sheet, spacing the cookies about 2 inches apart.
Bake in the preheated oven for 10 to 12 minutes or until the cookies are golden around the edges but still soft in the centre.
Allow the cookies to cool on thebaking sheet for 2 to 3 minutes.
Transfer the cookies to a wirerack to cool completely.
Enjoy your delicious Tahini Chocolate Chunk Cookies with Dates!