Ingredients for 4 servings
- 500 g sweet onions (Roscoff style or from the Cévennes) peeled
- 50 g salted butter
- 50 g flour
- 2 dl good alcohol or rice vinegar
- 3 dl prepared beef broth
- salt and ground pepper.
1/ Melt the butter then add the finely sliced onions. season with salt and ground pepper, sweat for 15 minutes then add the flour, stir well and cook covered very gently, watching carefully that the bottom does not stick for 45 minutes.
2/ Then add the vinegar, cook for another 10 minutes, finally add the broth, stir well and finish cooking covered on low heat (1/2 hour).
Test the seasoning,
At the end everything should have the appearance of a cream.
This old recipe was once made in the fireplace hearth, very slowly, this preparation replaced the mustard served with a roast or pork chops or grilled sausages and even with a fillet of pan-fried cod the result is guaranteed.
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