peanut butter-chocolate rice crispy treats

My husband actually told me that these were the best rice crispy treats he has EVER had!

the goods:

3 tablespoons unsalted butter, plus more for baking dish

4 cups miniature marshmallows

1/3 cup creamy peanut butter

1/2 teaspoon salt

6 cups puffed-rice cereal

1 package (12 ounces) semisweet chocolate chips, melted

1/4 cup chopped, salted peanuts (optional)

Butter an 8-inch square baking dish. In a large pot, combine marshmallows, peanut butter, butter, and salt. Cook over medium, stirring, until melted, about 4 minutes. Add cereal and stir to combine.

With a wooden spoon greased with cooking spray, press half the cereal mixture into dish. Spread half the melted chocolate on top. Repeat with remaining cereal mixture and chocolate.

Sprinkle with peanuts if desired.

Cut into squares.