– 1 pound of sourdough bread – 2 tablespoons of olive oil📷 – 1 yellow onion, finely chopped – 3 stalks of celery, thinly sliced – 1 teaspoons of fine sea salt – ½ teaspoon of pepper – 3 tablespoons of parsley – 2 tablespoons of fresh sage – 2 tablespoons of vegan butter – 4 cloves of garlic, minced – 2 tablespoons of lemon juice – 1 ¼ cups of broth