I subscribe to the "Martha Stewart Cookie of the Day" these are just a couple from the emails

Surprise Cookies
To stack cookies, wait until frosting dries, then place waxed paper in between the layers to keep the frosting from smearing.

Ingredients
Makes about 2 dozen
1 3/4 cups all-purpose flour
3/4 cup cocoa powder
1/2 teaspoon baking soda
1/2 teaspoon salt
1/2 cup (1 stick) unsalted butter, softened
1 cup sugar
1 large egg
1/2 cup milk
1 teaspoon pure vanilla extract
12 large marshmallows, cut in half horizontally
Chocolate Frosting for Surprise Cookies (see below)

Directions
Preheat oven to 375 degrees F. In a medium bowl, whisk together flour, cocoa powder, baking soda, and salt; set aside.

In the bowl of an electric mixer fitted with the paddle attachment, cream together butter and sugar until light and fluffy, about 2 minutes. Add egg, milk, and vanilla, and beat until well combined. Add reserved flour mixture; mix on low speed until combined.

Using a tablespoon or 1 3/4-inch ice cream scoop, drop dough onto ungreased baking sheets, about 2 inches apart.

Bake until cookies begin to spread and become firm, 10 to 12 minutes.

Remove baking sheets from oven, and place a marshmallow, cut-side down, in the center of each cookie, pressing down slightly. Return to oven, and continue baking until marshmallows begins to melt, 2 to 2 1/2 minutes. Transfer cookies to a wire rack to cool completely before frosting.

Spread about 1 tablespoon of frosting over each marshmallow, starting in the center and continuing outward until marshmallow is covered.

Chocolate Frosting
Makes 1 cup
2 cups confectioners' sugar
4 tablespoons (1/2 stick) unsalted butter, melted and cooled
1/4 cup cocoa powder
1/4 cup milk
1/4 teaspoon pure vanilla extract

Directions
Place confectioners' sugar in a medium bowl. Whisk in butter and cocoa powder. Add milk and vanilla, and whisk until well combined


Chunky Peanut, Chocolate, and Cinnamon Cookies
You can also make bite-size cookies by rolling the dough into smaller balls.

Ingredients
Makes about 5 dozen
2 cups all-purpose flour
1 teaspoon baking soda
1 teaspoon salt
1/2 teaspoon ground cinnamon
3/4 cup (1 1/2 sticks) unsalted butter, softened
1/2 cup smooth peanut butter
1 cup packed light-brown sugar
1/2 cup granulated sugar
2 large eggs
1 1/2 cups semisweet chocolate chips
2/3 cup roasted, salted peanuts, coarsely chopped
2 teaspoons pure vanilla extract
Chocolate or vanilla ice cream, for serving

Directions

Preheat oven to 350 degrees. Whisk together flour, baking soda, salt, and cinnamon in a medium bowl. Put butter and peanut butter in the bowl of an electric mixer fitted with the paddle attachment; mix on medium speed until combined, about 2 minutes. Add sugars; mix 2 minutes. Mix in eggs. Gradually add flour mixture; mix until just combined. Fold in chocolate chips, peanuts, and vanilla with a mixing spoon until well distributed. Refrigerate dough until it is slightly firm, 15 minutes.

Roll dough into 1-inch balls. Space balls 2 to 3 inches apart on baking sheets lined with parchment paper. Flatten slightly. Bake until just golden, about 13 minutes. Transfer cookies to wire racks to cool. Serve with ice cream.