PREHEAT oven to 350°F. Grease 12 medium muffin cups.
MIX graham crumbs, sugar and baking powder in large bowl.
ADD milk, egg and honey; stir just until crumb mixture is moistened. Stir in 1 cup of the cookies.
SPOON batter into prepared muffin cups. Toss remaining 1/2 cup cookies with marshmallows. Sprinkle evenly over batter; press lightly into batter.
BAKE for 16 minutes or until toothpick inserted in centers comes out clean. Let stand 5 minutes; remove from pan. Serve warm.