I haven't seen these particular M&Ms in the stores. I'll have to look for them, but I imagine you could use any kind.
Butterscotch Swirl Bark Recipe
INGREDIENTS
12 oz Vanilla Almond Bark (cut up if in a block) or Vanilla Chip
1 cup Butterscotch Chips
1 cup M&M’S Boo-tterscotch White Chocolate
1/2 cup chopped pecans
1/2 cup chopped toffee bar pieces
1 tsp sea salt
DIRECTIONS
In a microwave safe bowl, microwave the vanilla almond bark one minute then stir. Microwave 30 seconds then stir. Repeat the 30 second intervals with stirring until the mixture is melted and smooth. Once completely melted, spread over a piece of greased foil or wax paper.
In another bowl microwave the butterscotch chips in 30 second intervals until completely melted.
Drop the melted butterscotch chips by the teaspoonful onto the vanilla almond bark mixture. Swirl ingredients together (I used a wooden skewer stick), making a few passes through the candy.
Immediately add toppings to the swirled mixture. Let set until completely hardened.