Simply good food - Et voilà
Simply good food - Et voilà
1 tablespoon olive oil
2 onions - peel and finely chop
1,5 tablespoons Dijon mustard
250 g white mushroom - clean with a dry brush, cut off the stem then slice the biggest ones
250 ml water
salt - to your taste
black pepper - freshly ground from a pepper mill, to your taste