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

In a large mixing bowl, whisk together the melted butter, brown sugar, and white sugar until smooth.

Add the egg and vanilla extract to the sugar-butter mixture, and mix until fully combined.

In a separate bowl, combine the einkorn flour, baking soda, and salt. Slowly add the dry ingredients to the wet mixture, stirring until the dough forms.

Scoop tablespoon-sized portions of dough and place them on the prepared baking sheet, spacing them about 2 inches apart.

Bake for 10-12 minutes, or until the edges are lightly golden. The centers may look a little soft, but they will firm up as they cool.

Allow the cookies to cool on the baking sheet for 5 minutes, then transfer to a wire rack to cool completely. Enjoy!