Preheat the oven to 350°F (175°C).

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

In another bowl, mix the brown butter, sugar, sourdough discard, egg, and vanilla until combined.

Gradually add the dry ingredients to the wet ingredients and mix until just combined.

Fold in the chocolate chips.

Drop spoonfuls of dough onto a baking sheet lined with parchment paper.

Bake for 10-12 minutes or until golden brown.

Let cool on the baking sheet for a few minutes before transferring to a wire rack.