6 servings
Step 1:
Wash and julienne the onions.
Step 2:
Sweat the onions in butter for 30 minutes, they must be brown, but not burnt. Add a thin veil of flour and remove from the heat for a minute. Pour the white wine and reduce completely.
Step 3:
Add the water and cook for 30 minutes, add salt and pepper.
Thinly dice the strawberries. Grate the Gruyère cheese.
Step 4:
Add the strawberries and grated cheese at the moment of serving.
