Preparation Steps

• Start by preheating your oven to 350°F (175°C). Line an 8x8 inch baking pan with parchment paper for easy removal later.
• In a large mixing bowl, cream together the softened butter and sugar until smooth and light. Make sure to scrape down the sides for an even mixture.
• Add in the cocoa powder and vanilla extract, mixing until fully combined. The batter should be rich and thick.
• Spread half of the chocolate batter into the prepared pan, smoothing it out evenly. Bake for about 10 minutes, just until set.
• Meanwhile, in a saucepan, combine the sweetened condensed milk and heavy cream over medium heat. Stir constantly until the mixture begins to thicken slightly.
• Pour the caramel filling over the baked chocolate layer in the pan, then dollop the remaining chocolate batter on top. Swirl it together gently with a knife.
• Return to the oven and bake for an additional 20 minutes or until the edges are set and the center has a slight jiggle.
• Allow the bars to cool completely before slicing. Finally, sprinkle sea salt on top right before serving for a touch of extra flavor.