Good-Cooking - Banana Nut Cheesecake

Ingredients

• 1 cup chocolate wafer crumbs
• 1/4 cup margarine, melted
• 16 ounces cream cheese, softened
• 1/2 cup granulated sugar
• 1/2 cup mashed ripe bananas
• 2 large eggs
• 1/4 cup chopped walnuts
• 1/3 cup milk chocolate chips
• 1 tablespoon margarine
• 2 tablespoons water