Simmered

Their marriage simmered with discontentment and unspoken anger.

Raw, simmered, or grilled, tomatoes are a delicious ingredient.

Yanni's anger simmered.

If you give simmered food a moment to cool, the flavors will spread throughout the dish, and it'll taste really good.

This simmered dish has a bit of a strong taste, don't you think? It may just be that I prefer plainer foods though.

The soup pot simmered on the stove.