Possible Clues:

• Observing what novel form of cake topping is!
• Seeing that it isn't sugary on top
• In view of the fact that it's not so sweet on top
• Perceiving
• Seeing that one isn't sweet on cake
• With frozen condensation behind, not seeing
• Perhaps it isn't so sweet on top, you see
• Seeing that it isn't on top of the cake
• Seeing that it isn't so sweet on top
• In view of the fact that it isn't sweet on top