Preheat your oven to 375°F and grease a heart-shaped pie pan.

Cream together the softened butter, brown sugar, and granulated sugar for 4-5 minutes until fluffy.

Mix in the whisked egg and vanilla extract until fully combined.

In a separate bowl, whisk together the flour, baking soda, and kosher salt, then gradually add to the wet ingredients.

Fold in the semi-sweet chocolate chips.

Pour the batter into the prepared pan and press it evenly down.

Bake for about 20 minutes until golden brown and a toothpick comes out clean.