Cocoa Surprise Cookies

1 cup butter, softened
1 cup sugar
1 cup packed brown sugar
2 eggs
2 teaspoons vanilla extract
3 cups all-purpose flour
2/3 cup baking cocoa
1/2 teaspoon baking soda
2 cups (12 ounces) semisweet chocolate chips
2 cups miniature marshmallows, frozen

In a large mixing bowl, cream butter and sugars until light and fluffy. Add eggs, one at a time, beating well after each addition. Beat in vanilla.

Combine the flour, cocoa and baking soda; gradually add to the creamed mixture and mix well. Stir in chocolate chips.

Roll into 1-1/2-in. balls. Press two to three frozen marshmallows into each; reshape balls. Place 2 in. apart on ungreased baking sheets.

Bake at 400° for 8-10 minutes or until set. Cool for 5 minutes before removing to wire racks to cool completely. Makes 5 dozen.