
I got this recipe from MS from church. She brought them to my daughter's primary class one Sunday, I think it came from a Martha Stewart cookbook. I doubled the recipe when I made them and used a 9 x 13 pan. I also skipped the parchment and just sprayed the pan with cooking spray. And, I just melted the chocolate and butter in the microwave. So, basically I didn't follow the instructions at all, but they were really good!
6 tbsp. unsalted butter
6 oz. semisweet chocolate, chopped coarsley
1/4 c. unsweetened cocoa powder
3/4 c. flour
1/4 tsp. baking powder
1/4 tsp. salt
1 c. sugar
2 large eggs
2 tsp. vanilla
Preheat oven to 350F. Line a buttered 8 inch square baking pan with parchment, allowing and 2-inch over hang. Butter lining (not overhang).
Place butter, chocolate and cocoa powder in a heatproof bowl and set over a pan of simmering water. Stir until butter and chocolate have melted. Let cool slightly.
Whisk together flour, baking powder and salt in a bowl. Put sugar, eggs and vanilla in the bowl of an electric mixer fitted with the whisk attachment. Mix on medium speed until pale, about 4 minutes. Add chocolate mixture, mix until combined. Reduce speed to low. Add flour mixture, mix scraping down sides of bowl until well combined.
Pour batter in prepared pan, spread evenly with spatula. Bake until a cake tester inserted into brownie comes out with a few crumbs but is not wet, about 35 minutes. Let cool slightly in pan, about 15 minutes. Lift out, let cool completely on a wire rack before cutting into squares.