1Heat oven to 350°F (325°F for dark or nonstick pan). Line 12 regular-size muffin cups with paper liners. Make brownie mix as directed on box, using water, oil and eggs. Stir in chopped cherries. Divide batter evenly among muffin cups.
2Bake 25 to 35 minutes or until toothpick inserted in center comes out clean. Cool 5 minutes; remove from pan to cooling rack. Cool completely, about 30 minutes.
3In medium bowl, mix powdered sugar, butter, vanilla and enough milk with spoon until glaze is smooth and spreadable. Drizzle glaze over cakes to look like cobwebs.