Hamburgers in Portobello Buns with Sautéed Onions
Nothing beats making your own hamburgers! And if you have a large crowd to please, they are easy to prepare and incredibly delicious, you’ll never look back!
{This recipe makes 10 hamburgers)
ingredients:
2lbs beef mince meat
1 egg
4/5 tbsp. chestnut flour (Gluten-free)
1 tbsp. cold water
1 tbsp. ketchup
1 tsp. tamari sauce
1 onion large, finely chopped (use a mini chopper if you have)
sea salt & white pepper
sautéed onions:
2 onions, finely sliced
2 tbsp. rapeseed oil
sea salt
white pepper
garlic granules (optional)
paprika (optional)
serving suggestion (optional ):
If you would like to serve the hamburger in Portobello Mushrooms, instead a bugger bun
20 portobello mushrooms, remove gills
4 tbsp. olive oil
sea salt
5 avocadoes
6 salad tomatoes, thinly sliced
2 red onions, thinly sliced
2 romaine lettuce, core removed, halved
Preparation time – 30 mins, cooking time – 20 minutes:
Pre-heat the oven to 400°F, gas mark 6, 200°C (180°C fan-assisted).
In a magimix chop one large onion, then place in your mixing bowl. Then add 1 tbsp. of cold water to the finely chopped onion to form a paste, then season with the salt & pepper, ketchup and tamari sauce.
Then slowly mix in the mince meat ½ a packet at a time, with a wooden spoon or use your hand (using your hand is best).
Then make a well in the center of the mix and add your egg, beat with the wooden spoon until the egg is nicely combined into the mixture. Then slowly incorporate the chestnut flour (gluten-free), continue to mix well until everything is binded together.
You can make this mixture the night before using and leave covered in the fridge, this actually helps to shape the burgers, as the mixture will get firmer overnight.
To make the burger collect a large handful of the mixture, and then roll into a ball in the palm of your hands, then place on the pre-lined tray and slightly flatten.
Line two baking trays with parchment paper or silicone baking mats. On one tray add the shaped burgers. And on the other tray add the mushrooms, cap side facing down, brush the mushrooms with olive oil and season with sea salt and cracked pepper. Bake everything in the oven for 20 minutes (if you like your burgers slightly pink, reduce cooking time by 5 minutes for the burgers).
To make the sautéed onions, place a large non-stick frying pan on the stove add the rapeseed oil together with the sliced onions, cook over a medium heat for 5 minutes, then season with sea salt, white pepper and a little garlic granules and paprika. Continue to cook for a further 5 minutes, until soft over a gentle heat, continue stirring throughout the cooking process.
When the burgers have cooked, allow to rest for 5 minutes, them assemble and serve with the soft onions.
Enjoy!
LISA’S TIP – I love to serve these burgers in portobello mushroom caps with cos or romaine lettuce, a few slices of tomato, avocado and honey mustard! Alternatively you can serve in a bun or with some potato wedges. You can also make a batch of burgers and then keep them in the fridge, and chop them up and add to a salad.
ABOUT THE CONTRIBUTOR
Lisa Roukin is a chef, teacher and writer, her main focus is developing gluten and wheat free recipes as she suffered with weight issues growing up as a child and in her adult life she identified that eating gluten was causing skin issues, psoriasis and mood swings. She runs her own business teaching private cookery lesson and demonstrations, based around her healthy way of eating. She has appeared on channel 4, cooked live on BBC Radio, and was a finalist on Gordon Ramsey’s the F Word. She is also a blogger for the Huffington Post and provides gluten-free recipes to Ocado, The world’s largest online food retailer. Lisa has recently published her debut cookbook “My Relationship with Food” which features 100 delicious recipes, each mirrored by beautiful photography. All the dishes are virtually gluten-free and see minimal use of dairy and refined sugars. The recipes are seasonal, helping you make the most of the best produce available to create nourishing meals. Perfect for those wishing to build on their repertoire, introducing you to some inspiring breakfasts, lunches, soups, sides, dinners and healthy snacks.
