Grilled Beef Satay

Name: Grilled Beef Satay
Prep time: 15 min
Cook time: 15 min
Total time: 30 min
Cuisine: Asian, Thai
Ingredients: 500 g (1.1 lbs) Denver steak; 2 tbsp vegetable oil; 2 tbsp dark brown sugar; 1 tbsp fish sauce; 200 ml (7 oz) coconut milk (from a tin); 3 tbsp dark brown sugar; 2 garlic cloves (peeled and crushed); 2 tsp lemon grass paste ((or 2 lemon grass stalks, outer leaves discarded, inner leaves minced)); 2 tsp minced ginger; 1 tbsp dark soy sauce (use tamari for gluten free); ½ tsp cumin; 1 tsp ground coriander; 3 heaped tbsp chunky peanut butter; 1 tbsp dark soy sauce (use tamari for gluten-free); 1/2 tsp chilli flakes (red pepper flakes); 1 tbsp dark brown sugar; 1/2 tsp ground coriander; juice of 1 lime; 1 fresh red chilli (thinly sliced); 2 tbsp fresh coriander (cilantro) (chopped); 1/2 tsp chilli flakes ((red pepper flakes)); 1/4 red onion (peeled and finely sliced); 1 tbsp roasted peanuts (roughly chopped); 1 tsp sesame seeds