Spray an 8x8-inch pan with cooking spray.

Cover with waxed paper.

Spray the paper with cooking spray and set aside.

Set the oven to warm.

Melt the chocolate chips in an oven proof bowl in the microwave, stirring often until smooth and "drippy"

Place in the oven to keep warm.

Melt 1 cup of the white chocolate chips in the microwave, stirring often until smooth.

Place in the oven to keep warm.

Melt the 1/4 cup peanut butter with the remaining cup of white chocolate, stirring to blend.

Place in the oven to keep warm.

Spread the chocolate mixture evenly over the waxed paper.

Sprinkle with 1 1/2 cups of the pretzels.

Drizzle the white chocolate over the top.

Drizzle the peanut butter mixture over that and used a knife to swirl the mixtures together gently.

Sprinkle the remaining pretzels over the top and press lightly.

Chill until the chocolate has hardened.

Break in pieces to serve.