Ingredients

Vegetable oil cooking spray 

1 pound white chocolate, chopped 

1 1/3 cups coarsely chopped store-bought chocolate wafer cookies (about 15) 

Preparation

Coat a 9-by-12 1/2-inch rimmed baking sheet with cooking spray, and line with parchment, leaving an overhang on ends. Melt chocolate in a double boiler or a heatproof bowl set over a pan of simmering water, stirring.

Stir in cookies. Pour chocolate-cookie mixture into baking sheet, and spread in an even layer. Refrigerate until firm, about 1 hour. Break into pieces.