2 cups all-purpose flour, spooned and leveled
1 1/2 teaspoons baking soda
1 teaspoon salt
1 cup (2 sticks) unsalted butter, room temperature
1 cup granulated sugar
3/4 cup packed light-brown sugar
2 large eggs
2 teaspoons pure vanilla extract
1 bag (12 ounces) semi sweet chocolate chips
1-3.5 ounce milk chocolate bar, chopped into big chunks
1 bag of large sized marshmallows
Preheat oven to 350 degrees. In a medium bowl, whisk together flour, baking soda, and salt. Set aside.
In a large bowl, with an electric mixer, beat butter and sugars until light and fluffy. Add eggs one at a time, beating well after each addition until combined; mix in vanilla.
With mixer on low speed, add flour mixture; mix until just incorporated. With a rubber spatula or wooden spoon, stir in chocolate chips and chocolate bar pieces.
Drop small mounds of dough (1 teaspoon of dough rolled into a ball) onto ungreased baking sheets, at least 4 inches apart and away from edges of pan. Bake until golden, 11-13 minutes.
Cool 1 to 2 minutes on baking sheets, then transfer to a rack to cool completely.
When completely cooled, place large sized marshmallows on a plate. Make sure they are standing upright. Microwave them 7-10 seconds. Working quickly, take one marshmallow and set on top of one of the cookies. Using a second cookie, gently press together and place on a baking sheet to set. If marshmallows are not soft enough, return to microwave for 5 seconds more.
*If you are short on time you can use a premade chocolate cookie mix from the store