Chocolate Candy Cane Cake

Ingredients

• 1 pkg (2-layer size) chocolate cake mix
• 1 pkg. (4-serving size) Jell-O Chocolate Instant Pudding
• 4 eggs
• 1 cup sour cream
• 1/2 cup vegetable oil
• 1/2 cup water
• 4 squares Baker's Semi-Sweet Chocolate, chopped
• 18 small candy canes, coarsely crushed (about 1 cup), divided
• 3 cups Cool Whit Topping, thawed