Step 1

Spray a 13 x 9 inch baking dish with cooking spray. Set aside.

Step 2

In a deep large heavy bottomed pot over low heat, melt together butter and marshmallows until smooth. Stir to prevent sticking.

Step 3

Add vanilla and pudding mix. Stir until combined. Continue to cook for 2-3 minutes over low heat while stirring.

Step 4

Remove from heat and add rice krispies cereal. Stir with a large non stick spatula until evenly coated, work quickly.

Step 5

Press mixture into prepared dish. Spray hands with cooking spray or use a piece of wax paper to press evenly into pan. Let cool completely.

Step 6

To make glaze: Melt together butterscotch chips with heavy cream in a microwave safe bowl. Melt in 20 second increments stopping to stir each time. Repeat until smooth adding additional cream as needed.

Step 7

Drizzle over rice krispies treats. Allow to set.

Step 8

Cut into squares and enjoy. Store leftovers in an air tight container at room temperature.