Brownies

This is from Moosewood Restaurant Cooks at Home.

1/2 cup butter
3 ounces unsweetened chocolate
1 cup lightly packed brown sugar
1/2 tsp vanilla extract
2 large eggs
1/2 cup white flour

• Preheat oven to 350 degrees.
• Butter an 8- or 9-in square baking pan.
• In a medium or large saucepan melt the butter and chocolate together. When the butter and chocolate have melted, remove the pot from the heat.
• Add the brown sugar and vanilla and mix with an electric mixer.
• Add the eggs. (If you aren't using an electric mixer, be sure the beat the eggs first. If you are using the mixer just crack the eggs right into the pot.)
• Stir in the flour, and mix until the batter is thoroughly blended and smooth.
  
• Pour batter into the pan and bake for 20 - 25 minutes.