Preheat your oven to 350°F (175°C) and grease a 9-inch round cake pan or a springform pan.

In a medium bowl, whisk together the flour, baking soda, and salt until well combined.

In a large bowl, combine melted butter, brown sugar, and granulated sugar, mixing until smooth. Add eggs and vanilla extract, blending thoroughly.

Carefully mix the dry ingredients into the wet ingredients until just combined, then fold in semi-sweet chocolate chips.

Spread the dough evenly into the prepared pan and bake for 20-25 minutes until golden edges form and a toothpick comes out clean.

Let the cake cool in the pan for 15 minutes. Optionally, sprinkle sea salt on top.

For the frosting, beat softened butter until creamy, gradually adding powdered sugar and mixing in heavy cream and vanilla.

Frost the cooled cake generously and serve.