Name: Grilled Portobello Burger with Onion Jam
Prep time: 20 min
Cook time: 30 min
Yield: 4
Cuisine: American
Ingredients: For the horseradish cream; 160g low-fat plain yoghurt; 3 tbsp prepared horseradish; For the onion jam; 2 tbsp extra-virgin olive oil; 3 medium-large red onions, thinly sliced (about 900g); 1 sprig fresh thyme; Salt and freshly ground black pepper; 240ml red wine; 80g honey; 60ml red wine vinegar; For the portobello burgers; 2 tbsp extra-virgin olive oil; 1 garlic clove, crushed; 2 tbsp balsamic vinegar; 1 sprig fresh thyme; 4 large portobello mushrooms, (about 450g) stemmed; Salt and pepper; Lettuce leaves; 4 brown baps, or brown English muffins, split and toasted