Read the recipe for making brownies.1 egg1/2 cup of softened butter2 cups flour1 cup sugar1 cup of sweetened cocoa2 teaspoons baking soda1 teaspoon salt1. Preheat the oven to 350 degrees.2. Mix the eggs and butter in a bowl until smooth.3. Add the flour, sugar, cocoa, baking soda, and salt to the bowl. 4. Mix the ingredients until thick and creamy.5. Pour the mixture into a 9x12-inch non-stick baking dish.6. Bake for 25 minutes.