Preheat barbecue to high.
In a bowl, combine beef with caramelized onions, onion, garlic, parsley, olive oil, HP sauce, pepper, egg yolk and salt.
Make patties. Grill patties until thoroughly cooked and showing no pink. Set aside.
Brush buns with butter and toast on the grill when patties are almost done. Serve hamburgers with tomatoes and lettuce.
Make sure you are using only lactose-free milk, yogurt, butter, cheese and other lactose-free 'dairy' products, and read the labels carefully when you buy these products.
Metro Richelieu inc. , its affiliated companies and affiliates are not responsible for any circumstance that should come up when using the suggested recipes. Each person using this site must check that each of the ingredients is allowed in his/her diet and is not part of his/her restricted foods.
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