Mushroom Spread a.k.a. Duxelles for Mushroom Toast and Beyond! For the Onions / Shallots: 1 yellow onion or 2 large shallots, diced 2 Tbsp olive oil or butter … akaduxellesFranceFrenchfrench winemushroommushroom duxellesmushroom duxelles pronunciationmushroom duxelles recipemushroom fillingmushroom filling beef wellingtonmushroom filling for chickenmushroom filling for pastamushroom pureemushroom spreadmushroom tapasmushroom toastmushroomsspreadVideoVlogWineYouTube