Chocolate Bark with Peanut Butter Swirl

Smooth peanut butter and two types of chocolate make up this version of the beloved peanut butter cup.

vegetable oil cooking spray
12 oz bittersweet chocolate, chopped
4 oz milk chocolate, chopped
¼ cup creamy peanut butter

Coat a 9x12½" rimmed baking sheet with cooking spray, and line with parchment, leaving an overhang on ends.

Melt bittersweet chocolate in a double boiler or a heatproof bowl set over a pan of simmering water, stirring frequently. Pour into baking sheet, and spread in an even layer.

Melt milk chocolate with peanut butter in a double boiler or a heatproof bowl set over a pan of simmering water, stirring frequently.

Drizzle chocolate-peanut butter mixture over bittersweet chocolate, and swirl with a skewer.

Refrigerate until firm, about 1 hour. Break into pieces and serve.

Makes one 9x12½" sheet.