Start by baking your favorite brownie recipe in a 9x13 inch pan. Allow the brownies to cool completely in the pan on a wire rack.
In a large mixing bowl, combine the 52 crushed Thin Mint cookies with 4 ounces of low-fat cream cheese. Mix until well combined.
Spread the Thin Mint truffle filling evenly over the cooled brownie layer, pressing it down gently.
In a microwave-safe bowl, combine 2 cups of chocolate chips and 1 tablespoon of Crisco. Heat in the microwave in 30-second increments until smooth.
Pour the melted chocolate mixture over the Thin Mint truffle layer, spreading it evenly with a spatula.
Refrigerate the brownies for at least 2 hours or until the chocolate is set. Slice into squares and serve.
