In a pot over medium-high heat, add the water and salt and bring to a boil.
Once boiling, add the green beans and cook for about three minutes when they’re bright green and you can pierce them with a fork but there’s still some resistance (remove them before they turn soft because you will be cooking them in a pan later).
Use tongs to transfer the beans into a strainer and run the beans under cold water for about 30 seconds.
In a saute pan over medium heat, melt the butter. Then add the garlic slices and saute for about 30 seconds just until fragrant. Make sure to stir around the garlic to prevent them from sticking onto the pan.
Add the green beans and toss with the butter and garlic.
Cook for about two minutes or until you can easily pierce them with a fork.