Pentoshi Mushrooms In Garlic Butter recipes

Name: Pentoshi Mushrooms In Garlic Butter recipes
Ingredients: 4 large portobello mushrooms, with stems; 6 tablespoons (3/4 stick) unsalted butter, divided; 4 large white onions, finely chopped; 10 cloves garlic, finely chopped; 1 cup arborio rice; 5 cups vegetable stock or water; 2 tablespoons Parmigiano-Reggiano cheese; 1 bunch scallions, finely chopped; garlic; olive oil