This is the frosting for the previous cookies, sprinkled with chocolate jimmies.
Got it years ago on Gail's Recipe Swap from: Dawn/NYS -- VERY sweet
caramel/butterscotch frosting
1 cup brown sugar, firmly packed
5 Tbsp butter
1/2 tsp salt
1/4 cup milk
1 1/2 cup confectioners (powdered) sugar
Sift sugar if lumpy, and combine sugar, butter, and salt in saucepan. Bring to a boil, stirring constantly.
Add milk and reduce to low heat; simmer for about 3 minutes. Let cool.
Add powdered sugar and whisk until thickened.

Chocolate Butterscotch Bar Cookies
1 Devil's Food cake mix
3 eggs
1/2 cup oil
1 cup chopped butterscotch chips

Mix together.
Spread thick dough in 15x11 cookie sheet
Bake for 20 minutes at 350 degrees.
Cool, remove, frost, cut in small squares.