In a medium saucepan over medium-low heat, melt the butter. When it's melted, remove the pan from the heat and whisk in the sugars
add peanut butter until the ingredients are all incorporated. Let stand to cool slightly, about 5 minutes.
In a large mixing bowl, whisk the eggs, then whisk in the vanilla. What a funny face!!
When the peanut butter mixture has cooled, stir it into the eggs until smooth and incorporated.
Stir in the flour and salt until well blended
then stir in the chocolate chunks and peanut butter chips
At this point I was ready to take a spoon and eat the whole bowl yum yum!!!!
Spread the batter in the prepared pan, smoothing the top. Bake for 30 to 35 minutes, until just set. Place on a rack to cool.
When the brownies are cool, turn out onto a cutting board. Peel off the paper. Turn brownies over, and slice into 16 squares. Brownies will keep for several days stored in an airtight container. My son and I couldn't wait another minute to taste the warn and melty brownies...sooooo good!!!
6 tablespoon unsalted butter
3/4 cup light brown sugar, packed
1/4 cup granulated sugar
2/3 cup chunky peanut butter
2 each eggs
1 teaspoon vanilla extract
1 cup all-purpose flour
1/4 teaspoon salt
1 cup semisweet chocolate chunks
1/2 cup peanut butter chips