甘味

1. Origins, structure, and basic meaning

• Structure: 甘味 (かんみ) means sweetness perceived in food. Both examples use 甘味が, with spreading and enhancement.
• Basic usage: Natural sweetness from roasted onion spreads through a dish; a little salt brings out fruit sweetness.

2. Common pitfalls and similar expressions

• Sweetness released by cooking and enhanced by seasoning
  • 広がる describes diffusion of flavor; 引き立つ describes a quality made more prominent by another ingredient. Added sugar is not required.