Peanut Buttery Snap Crackle n Pop Brownies

I found this recipe on www.kevinandamanda.com. She has a couple of other desserts I want to try out as well.

1 box brownie mix

1 cup sugar

1 cup light corn syrup

1 1/3 cups peanut butter

1 teaspoon vanilla

4 cups Rice Krispies

Prepare brownies as instructed. Heat sugar and corn syrup in a heavy bottomed saucepan over high heat until mixture reaches a boil. Remove from heat. Stir in peanut butter and vanilla until smooth. Pour over rice krispies and stir to combine. Immediately press the peanut butter and rice krispies mixture over the brownies.