STIR-FRIED BEANS WITH LEMON AND CASHEWS

1 tablespoon butter
1/2 cup unsalted cashew nuts, chopped
200 g green beans trimmed
150 g snake beans halved
150 g yellow beans trimmed
1/3 cup lemon juice
2 tablespoons palm or brown sugar
1 tablespoon light soy sauce
2 tablespoons mint leaves

Heat butter in a frypan or wok over medium heat. Add cashews to pan and stir fry for 2 minutes.

Add beans to pan and stir fry for 3 minutes or until beans are crisp but tender.