Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper.

In a large mixing bowl, combine the Biscoff cookie butter, granulated sugar, and brown sugar. Mix until smooth, then add in the egg and vanilla extract. Stir until fully combined.

In a separate bowl, whisk together the flour, baking soda, and salt.

Gradually add the dry mixture into the wet ingredients. Stir until just combined, taking care not to over-mix. Fold in the white chocolate chips.

Using a cookie scoop or tablespoon, drop dollops of dough onto the prepared baking sheet, leaving space between them.

Place in the preheated oven and bake for 10-12 minutes, or until the edges are lightly golden but the center remains soft.

Remove from the oven and let the cookies sit on the baking sheet for 5 minutes before transferring them to a wire rack to cool completely.