Garlic Mushroom Beef Burger with Caramelised Onions and Thyme

Serves 2

Prep Time 5 minutes

Cook Time 40 minutes


350g chestnut or button mushrooms, sliced
1 large onion, sliced
2 cloves garlic, crushed or grated
2 teaspoons thyme leaves
2 beef burgers
2 buns
2 slices Emmenthal cheese
Butter, for cooking
Oil, for cooking



Garlic mushrooms and sweet caramelised onions make a great addition to a burger. It takes longer than you think to properly caramelise onions so allow at least 30 minutes and up to 45.

Mushroom Burger .jpg

1. Melt a tablespoon or so of butter in a frying pan and add the sliced onions with a pinch of salt. Cook over low heat, stirring often until caramelised and golden - around 35-40 minutes.

Caramelised onions-1.jpg

2. Heat a splash of oil in a frying pan over medium heat, and add the mushrooms. Allow to cook without stirring for 5 minutes. After this time, stir the mushrooms and add a pinch of salt. Stir again and add the garlic and allow to cook for a further few minutes, stirring often. Add the thyme leaves and a teaspoon or so of butter. Allow to cook for a minute more then remove from the heat.

Mushrooms Cooked .jpg

3. Light one of the Jupiter Outback gas burners and turn the heat to medium-high. Season the burgers with salt and place them on the grill. Cook for a few minutes each side or until cooked to your liking.

Burgers Cooking.jpg

4. Lightly toast the buns and top with a layer of onions. Top with a burger and slice of cheese. Add some mushrooms to each burger and top with the bun lids.

About the recipe author

Helen Graves The Author

Helen Graves is an award-winning recipe, food and travel writer with a particular interest in barbecue. She writes freelance for many major food and drink publications and is editor of Pit, the UK's first independent magazine about live-fire cooking. Helen has created a series of exclusive recipes for Outback that focus on maximising flavour for the home cook  using lots of spices, fresh herbs and BBQ techniques.