Step 1

Heat oven to 350°F. Line 15x10x1-inch pan with cooking parchment paper. Evenly pour cereal in an even layer in pan, clustering cereal tightly. Set aside.

Step 2

In 2-quart saucepan, melt butter over medium heat. Add brown sugar, stirring until well blended. Heat to boiling; cook about 5 minutes or until dark golden brown. Remove from heat. Stir in vanilla. Drizzle over cereal; using spatula, spread evenly over cereal.

Step 3

Bake 10 minutes. Cool 3 minutes.

Step 4

Meanwhile, in medium bowl, stir melted chocolate and peanut butter until well blended. Drizzle over cereal; spread in an even layer. Sprinkle with pretzels and peanuts. Press into chocolate mixure.

Step 5

Refrigerate about 1 hour or until chocolate is set. Remove from pan; cut into 5 rows by 4 rows. Cut each square diagonally into 2 triangles.