½ cup unsalted butter, softened
¾ cup packed light brown sugar
1 tsp. vanilla extract
2 cup all purpose flour
1 (14 oz.) can sweetened condensed milk
2 c. mini chocolate chips
½ cup creamy peanut butter
½ cup milk chocolate chips (or semi-sweet)
In a large mixing bowl, mix together butter and brown sugar until it is fluffy. This takes about 3 minutes.
Add vanilla and beat until combined.
Turn the mixer to low and alternate the flour and the sweetened condensed milk until combined. Gently fold in chocolate chips.
Press the cookie dough into the bottom of the 8×8 pan that has been lined with parchment paper. It will be sticky so lightly flour your hands if needed.
Cover your bars with plastic wrap and refrigerate for 3 hours or overnight until firm.
To make the topping, combine the peanut butter and ½ cup chocolate chips in a microwave safe bowl.
Stir every 30 seconds until smooth.
Pour and spread over the top of the chilled dough and chill for at least 1 hour until firm.
Let sit out for 5-10 minutes to soften before cutting into.