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

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

In a large mixing bowl, cream together the softened butter, granulated sugar, and brown sugar until light and fluffy.

Beat in the eggs one at a time, followed by the vanilla extract, until fully combined.

Gradually add the dry ingredient mixture into the wet mixture, mixing until just combined.

Gently fold in the chocolate chips.

Using a cookie scoop, place the dough onto the prepared baking sheet.

Bake for 10-12 minutes, or until the edges are lightly golden.

While the cookies cool, heat the heavy cream in a small saucepan until it just begins to boil.

Remove from heat, pour the cream over the chopped semi-sweet chocolate, and let sit for a couple of minutes.

Stir until smooth and until cooled slightly.

Once the cookies are completely cool, frost them generously with the chocolate ganache.