To garnish food or drink is to add decorative and tasty touches to it, such as a spiral of lemon peel.

// Aditi likes to garnish her mashed potatoes with chives and a dollop of sour cream.

// Slivers of dark chocolate garnished the cake.

in a persistent or tenacious manner

Palaver is an informal word that usually refers to unimportant or meaningless talk. It can also refer to misleading or deceptive speech, or to a conference or discussion. In British English the word is sometimes used as a synonym of fuss to refer to unnecessary excitement about something.

// Enough of this palaver. We have more important things to discuss.

to change from a fluid into a thickened mass; curdle; congeal

Intransigent is a formal word that describes a person who refuses to compromise or abandon an often extreme position or attitude. It can also describe a thing, such as a system or point of view, that shows the same kind of stubbornness.

// Despite the mediator's best efforts, the opposing sides in the dispute remained intransigent.

Zest refers to an enjoyably exciting quality, or to keen enjoyment itself. In culinary use, zest refers to small pieces of the peel of a lemon, lime, orange, or other citrus fruit used as flavoring.

// His humor added zest to the presentation's admittedly dry material.

// The couple has a zest for travel and adventure.

// Lime zest adds a burst of brightness to the dessert's rich flavor.

Fugacious is a formal word that describes something that lasts only a short time.

// The rock band’s early success proved fugacious; within two years its members had moved on to other careers.

// Savor the enduring pleasures of life as intensely as the fugacious ones.

A rendition, simply put, is the act or result of rendering something. That thing may be a performance or interpretation, a depiction, or a translation. In US law, rendition refers to the surrender by a state of a fugitive to another state that is charging the fugitive with a crime.

// Their signature meatloaf is a fine rendition of a classic recipe.

// Theatergoers have been eager for an English rendition of the acclaimed French play.

Taciturn is a formal word that describes someone who tends to be quiet or who tends to speak infrequently.

// One of the twins was taciturn and shy, while the other one was more outgoing.