New Classic Brownies

Step 1

Preheat oven to 400 degrees. Line an 8-inch-square metal baking pan with foil. In top of a double boiler set over barely simmering water, or on low power in a microwave, melt butter and chocolate together. Stir often, and remove from heat when a few lumps remain. Stir until smooth.

Step 2

Stir in sugar, vanilla and salt. Stir in eggs one at a time, followed by flour. Stir until very smooth, about 1 minute, until mixture pulls away from sides of bowl. Add nuts, if using. Scrape batter into prepared pan and bake 20 minutes.

Step 3

Meanwhile, prepare a water bath: Pour ice water into a large roasting pan or kitchen sink to a depth of about 1 inch. Remove pan from oven and place in water bath, being careful not to splash water on brownies. Let cool completely, then lift out and cut into 1-inch squares or wrap in foil.