Preheat oven to 150°C (130°C fan / 300°F)
Season beef short rib with salt and black pepper
In a large oven-safe pan, sauté chopped garlic and shallots
Add Massaman paste and cook until fragrant
Dust beef with plain flour and brown in the pan
Pour in beef stock and coconut milk
Add lemongrass stalks, lime leaves, fish sauce, and brown sugar
Bring to a simmer, then cover and transfer to oven
Braise for 2.5 hours until beef is falling apart
Finish with lime juice
Serve over jasmine rice topped with spring onions, red chilli, and black sesame seeds
