Heat oven to 350°F. In large bowl, stir cookie mix, oil, water, egg and pecans until soft dough forms.
Step
2
On ungreased cookie sheets, drop dough by rounded tablespoonfuls 2 inches apart.
Step
3
Bake 7 minutes. Remove from oven; immediately press marshmallow half lightly, cut side down, on top of cookie. Bake 1 to 2 minutes longer or just until marshmallows begin to soften. Cool 2 minutes; remove from cookie sheets to cooling racks. Cool completely, about 15 minutes.
Step
4
Meanwhile, in 1-quart nonstick saucepan, melt chocolate chips over low heat, stirring until smooth. Remove from heat. Add whipping cream, butter and vanilla; blend well. Stir in powdered sugar until smooth.
Step
5
Spread frosting over each cooled cookie, covering marshmallow. Let stand until frosting is set.
A pouch of Betty Crocker® chocolate chip cookie mix can be used for the double chocolate chunk cookie mix.
Lightly spray kitchen scissors with cooking spray to make cutting marshmallows easy.