Gnocchi with butter

1 1/2 lbs russet potatoes 1 1/4 cups flour 1 tablespoon butter 3/4 teaspoon salt 1 egg parmigiano-reggiano cheese , fresh and shaved 1 Prepare the sauce:. 2[...]

1/4 cup butter (more or less) 1/2 teaspoon olive oil 3 garlic , minced 1 -2 minced shallot 1 1/2 cups halved grape tomatoes 1 1/2 cups mushrooms , sliced[...]