Caramel Mocha and Nutella Brownies

Bahan-bahan (16 porsi)

• 1/3 cup granulated sugar
• 2 tablespoons salted butter, at room temperature cut into chunks
• 1/4 cup heavy cream
• flaky sea salt
• 1 1/2 sticks (12 tablespoons) salted butter
• 1 1/2 cups semi-sweet chocolate, or milk chocolate, chips
• 1 cup granulated sugar
• 1 tablespoon instant coffee/espresso
• 1 tablespoon Kahlúa
• 2 teaspoons vanilla extract
• 3 large eggs
• 1/3 cup all-purpose flour
• 1/3 cup unsweetened cocoa powder
• 3/4 teaspoon baking powder
• 1/4 teaspoon kosher salt
• 1/2 cup Nutella