Heavenly Brownies

Step 1 -Place an oven rack in the middle position. Preheat the oven to 350 degrees F.

Step 2 -Line a 9x13-inch baking pan with parchment paper, making sure the parchment paper slightly overhangs the sides of the pan. Grease the parchment paper with butter or nonstick cooking spray.

Step 3 -Place the butter in a medium, microwave-safe bowl and melt in the microwave until bubbling.

Step 4 -Add the chocolate and whisk until the chocolate is completely melted. If the butter is not hot enough to melt the chocolate, heat the mixture in the microwave in 20-second increments until it reaches the right temperature.

Step 5 -Whisk the eggs in a large bowl. Add the salt, granulated sugar, brown sugar, and vanilla, whisking until smooth and no lumps remain.

Step 6 -Slowly whisk in the chocolate-butter mixture. Add the flour and whisk until the batter is uniform.

Step 7 -Pour the batter into the prepared pan, spreading it evenly.

Step 8 -Bake until the top forms a shiny crust and the batter is moderately firm, for about 45 minutes.

Step 9 -Cool completely in the pan on a rack.

Step 10 -Lift the brownies out of the pan using the parchment overhang.

Step 11 -Transfer the brownies to a cutting board. Trim away the edges and cut the brownies into 2-inch squares.

Step 12 -Serve!