Spinach and Artichoke Dip Baked Potatoes

Bahan-bahan (4 porsi)

• 4 (12 ounce) potatoes, preferably russets
• Canola, vegetable, or olive oil, for rubbing
• 1/2 cup sour cream
• 4 ounces cream cheese, softened at room temperature
• 1/4 cup grated Parmigiano-Reggiano cheese
• 1 small shallot, minced
• 2 medium cloves garlic, minced
• Kosher salt and freshly ground black pepper
• 1 1/2 cups (6 ounces) shredded mozzarella cheese
• 2 cups (4 ounces) raw baby spinach, chopped
• 8 ounces canned artichokes, drained and chopped