Best brownies ever!

So yesterday on the WC board at the nest Stephanie posted her blog update, and as I meandered abound her blog I found this gem of a recipe, which I of course had to make immediately! They smelled amazing cooking, so it was maybe a teeny tiny let down when they came out only because they couldn't possibly taste as good as they had smelled. I sent them to work with Michael today, because I could undoubtedly eat the whole pan if I wasn't thinking. They were really that good. We ate them last night warmed up with vanilla bean ice cream and chocolate syrup...decadent!

Milk Chocolate Chunk and Peanut Butter Brownies

Source: Carole Bloom's The Essential Baker
Makes 16 2-inch squares

INGREDIENTS:
3 oz (6 Tbsp) unsalted butter, softened
1/2 cup natural-style, chunky peanut butter
1 1/4 cups firmly packed light brown sugar
2 extra-large eggs, at room temperature
2 tsp vanilla extract
3/4 cup all-purpose flour
1 tsp baking powder
1/4 tsp salt
5 oz milk chocolate, chopped into small chunks

DIRECTIONS:
Center a rack in the oven and preheat it to 350 degrees. Line the baking pan with aluminum foil and grease the inside of the foil.
Place the butter in a large bowl and beat the butter on medium speed until it's fluffy, about 2 minutes.
Add the peanut butter and cream together. Stop occasionally to scrape down the sides and bottom of the bowl with a spatula.
Add the sugar to the mixture and cream together.One at a time, add the eggs to the peanut butter mixture and beat well after each addition. Add the vanilla and blend completely.
Sift together the flour, baking powder, and salt. Add the flour mixture to the peanut butter mixture in two stages and stir together thoroughly.
Add the chocolate chunks to the batter and stir to distribute evenly.
Pour the batter into the prepared pan and use a spatula to spread it evenly.
Bake the brownies for 35-40 minutes, until a toothpick inserted in the center comes out slightly moist.Remove pan from the oven and cool completely on a rack.
Lift the brownies from the pan with the aluminum foil and carefully peal the foil away from the sides. Cut into 4 equal-sized rows in each direction.