Place this clip right after the dessert is revealed on screen, not during the build-up. Start with a bell ding for the presentation, follow with this clip for the reaction, and keep other reaction sounds after it so the sequence reads clearly.
About this sound
A short two-second voice clip of someone chanting "Chocolate Chocolate. Yum Yum." with obvious delight in the delivery. It gives a listener a gleeful, hungry feeling, like a happy verdict after tasting something sweet and rich that was worth waiting for.