This is a recipe that screams for the use of a slow cooker. As the author of this recipe stated, slow cookers can maintain a very low temp, much lower than a hob can maintain, so this will simmer for 6 hours and the flavors will blend perfectly and the beef will be tender. For this recipe, it involves some work on the hob first, then the slow cooker takes over. This feeds a crowd, perfect for visiting friends or family. On my to cook list.
The ground beef, or beef in general is costly. Depending on your location, you may be able to get ground beef and will pay top dollar for it. Getting large cuts of beef and grinding (or chopping) yourself is preferred and most cost effective. For ground beef, I will go with about 200 Baht/kilo. For 8 servings, this is about 75 cents per serving.