Char-grilled Steak Paired with Asparagus and Pineapple Vinaigrette - ioanacooks

Ingredients

• 4 top sirloin steaks, 170 g each
• 1 bunch fresh asparagus, tough ends trimmed
• 1 thick slice red onion
• 8 cups butter lettuce leaves
• 250 g fresh pineapple, cubed
• 120 ml fresh pineapple juice
• 120 ml white wine vinegar
• 120 ml extra virgin olive oil
• 60 g light brown sugar
• 2 tablespoons fresh ginger, finely grated
• 2 tablespoons soy sauce
• 2 tablespoons Dijon mustard
• 1 teaspoon ground coriander
• 0.5 teaspoon fine salt
• 0.5 teaspoon freshly ground black pepper