1Heat oven to 400°F. Grease bottoms only of 12 regular-size muffin cups with shortening, or place paper baking cup in each muffin cup.
2In large bowl, beat brown sugar, molasses, milk, oil and egg with spoon. Stir in remaining ingredients except decorator sugar crystals and melted baking chips just until flour is moistened. Divide batter evenly among muffin cups. Sprinkle with sugar crystals.
3Bake 18 to 20 minutes or until toothpick inserted in center comes out clean. Immediately remove from pan to cooling rack. Cool completely, about 30 minutes. Drizzle with melted baking chips.