How do you write the sound make when like taste of something?

You can't really write down the sound someone makes when they taste something. It's an internal experience, not something you can hear.

However, you can use words and descriptions to convey the feeling:

For positive tastes:

* Mmm

* Delicious!

* Yummy!

* Oh, that's good!

* Mmmmm, I could eat this all day.

* A sigh of contentment

* Eyes widening in pleasure

For negative tastes:

* Ugh

* Yuck

* Blech

* This is awful!

* Spitting out the food

* Making a face of disgust

* Wrinkling your nose

You can also use onomatopoeia to suggest the texture of the food:

* Crunch (for a crisp apple)

* Slurp (for a thick soup)

* Chew (for a chewy cookie)

* Gulp (for a cold drink)

Ultimately, the best way to convey the sound of someone tasting something is through your creative writing and description.