Bring a large pan of salted water to the boil and add the beans. Cook for 3-4 minutes until they are just cooked but not soft. 

Meanwhile, melt the butter in a large skillet and add the garlic and almonds. Cook for a few minutes, stirring regularly. 

Drain the green beans and immediately rinse them in cold water. This will stop them cooking further and will help maintain their bright color. 

Add the drained beans to the skillet, and mix them into the butter mixture. Season with salt and pepper. A little splash of lemon juice can be added before serving if you like.