-
1
Preheat oven to 325F Use a 13x9 inch metal baking pan.
-
2
Put a long piece of parchment paper in the bottom of the pan, letting the parchment extend up two sides of the pan and overhang slightly on both ends.
-
3
(This will make it easy to remove the bars from the pan after they have baked.
-
4
).
-
5
Place chocolate in a 1 cup glass measuring cup.
-
6
Microwave for 1 minute and stir.
-
7
Continue to microwave in 30 second increments until chocolate has completely melted; set aside to cool slightly.
-
8
In the bowl of a stand mixer fitted with the paddle attachment, beat together butter and brown sugar until combined, about 2 minutes.
-
9
Beat in eggs and vanilla extract until combined, about 30 seconds.
-
10
Mix in melted chocolate until combined.
-
11
Mix in flour mixture until just incorporated.
-
12
Scrape batter into prepared pan and bake 25 to 35 minutes, or until toothpick inserted into the center comes out with just a few moist crumbs attached.
-
13
Transfer pan to wire rack and cool completely.
-
14
To make the cookie dough layer, In the bowl of a stand mixer fitted with the paddle attachment, beat together butter, brown sugar and white sugar until light and fluffy, about 3 minutes.
-
15
Beat in milk and vanilla until combined, about 1 minute.
-
16
Mix in flour just until combined.
-
17
Stir in chocolate chips.
-
18
Spread cookie dough over the cooled brownies.
-
19
To make the chocolate ganache, heat semisweet chocolate and milk in the microwave for 30 seconds then stir.
-
20
Continue to microwave in 15 second increments until smooth.
-
21
Pour over cookie dough layer.
-
22
Transfer pan to the refrigerator to let chocolate ganache set up completely.
