In a large bowl, whisk together the cocoa and melted butter. Stir in sugar until combined. Stir in eggs, one at a time, mixing well after each. Stir in vanilla. Fold in flour JUST until you no longer see flour streaks in the batter.
In the bowl of a mixer, beat butter and sugars and mix until light and fluffy. Beat in milk and vanilla. Gradually add flour and salt and mix until fully combined. Fold in mini chocolate chips. Spoon cookie dough over brownies and spread carefully. Place brownies in the refrigerator to chill for about an hour before dipping in melted chocolate.
Melt almond bark according to package directions. Remove brownies from pan, peeling off the foil and cutting into rectangles. Dip half of each brownie in melted chocolate and let the excess drip off. Place on wax paper until chocolate is firm.