1- In a large pot, melt your butter then add your thinly sliced onions, salt and let sweat covered gently for 15 minutes, then add the tablespoon of flour (roux) cook for 4 to 5 minutes then add 1.5 liters of cold spring water.
2- When boiling, salt lightly, add a little grated ginger and a dash of soy sauce, cook covered for 15 minutes.
3- Then add your soy bean sprouts for only 5 minutes of cooking (texture) taste the seasoning and turn off the heat.
4- Preheat the oven high and low to 240°(th6)
5- Distribute your onions and soy bean sprouts in your 4 ramekins then pour the liquid, cover with your 3 croutons topped with grated Emmental, place in the middle of the oven then remove when your croutons are well browned.
*You know how attached I am to the success of the wonderful Soissons beans and this flour has an additional advantage as it contains only a tiny amount of gluten.
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