Vegan dim sum buns

Name: Vegan dim sum buns
Cook time: 45 min
Total time: 45 min
Cuisine: Asian
Ingredients: 2 cloves of garlic; 1 thumb-sized piece of fresh ginger; ½ a bunch of fresh coriander (15g); groundnut oil; 450 g mixed mushrooms such as shiitake and chestnut; 2 tablespoons rice wine vinegar; 2 tablespoons sweet chilli sauce; 2 tablespoons low-salt soy sauce; 4 spring onions; 1 fresh red chilli; sesame oil; 1 x 400 g tin of light coconut milk; 500 g self-raising flour or 2 filled coconut milk tins of flour, plus extra for dusting; 2 tablespoons sesame seeds; hoisin sauce to serve