Satay Vegetable Skewers with Satay Sauce

Ingredients

• 2 red onions
• 1 large capscium (green or red)
• ½ sweet potato
• 6 baby courgettes
• ¼ cup Olive oil
• ½ tsp salt
• ½ tsp black pepper
• 1 inch stalk of lemongrass
• 1 fresh kaffir lime leaf
• 1 tsp garlic, minced
• 1 tsp ginger, minced
• ½ tsp ground coriander
• ½ tsp ground turmeric
• 3 tbsp crunchy or creamy peanut butter
• 1 tbsp light soy sauce
• 1 tbsp lemon juice
• 2 tsp brown sugar
• 1 tbsp Sriracha, or more, to taste
• 1 tsp freshly grated ginger