ONE EGG BROWNIES RECIPES

Steps:

• Preheat the oven to 300 degrees F. Butter and flour an 8-inch square pan.
• In a mixer fitted with a whisk attachment, beat the eggs at medium speed until fluffy and light yellow. Add both sugars. Add remaining ingredients, and mix to combine.
• Pour the batter into a greased and floured 8-inch square pan and bake for 45 minutes. Check for doneness with the tried-and-true toothpick method: a toothpick inserted into the center of the pan should come out clean. When it's done, remove to a rack to cool. Resist the temptation to cut into it until it's mostly cool.

Steps:

• Position an oven rack in the middle of the oven and heat to 325 degrees F. Line the bottom and sides of an 8-inch x 8-inch square baking pan with parchment paper or aluminum foil, leaving an overhang on opposite sides to help remove the baked brownies from the pan.
• Prepare a double-boiler by filling a medium saucepan with water about 2 inches deep. Heat the water until barely simmering. See the notes section below for tips on making these without a double-boiler and instead using a microwave or making them directly in a saucepan.
• Combine the butter, sugar, cocoa powder, and salt in a medium heat-safe bowl. Rest the bowl over the simmering water. If the bottom of the bowl touches the water, remove a little water from the saucepan.
• Stir the mixture occasionally until the butter has melted and the mixture is quite warm. Don’t worry if it looks gritty; it will become smooth once you add the eggs and flour.
• Remove the bowl from the saucepan, and set aside for 5 minutes or until it is only warm, not hot.
• Stir in the vanilla.
• Add the eggs, one at a time, stirring vigorously after each one.
• When the batter looks thick and well blended, add the flour. Use a spoon to beat the flour into the batter until it is very thick and pulls away from the sides of the bowl. We use a wooden spoon or spatula and beat for 40 to 50 strokes (see video for reference).
• Stir in nuts if using.
• Spread the batter evenly in the prepared pan.
• Bake the brownies until the edges look dry and the middle looks slightly underbaked; 20 to 30 minutes. You can test doneness by inserting a toothpick into the center. The brownies are finished baking if it comes out with a few moist crumbs attached.
• Cool completely before removing from the pan — this step is essential and helps the brownies set. Cut into 16 squares.