Creamy Crispy Latkes with Garlic Cumin Sour Cream

Name: Creamy Crispy Latkes with Garlic Cumin Sour Cream
Ingredients: 1 head garlic; 1 tablespoon extra-virgin olive oil; 1 teaspoon cumin seeds; 1 cup sour cream; 1 tablespoon freshly chopped parsley; 5 russet potatoes, peeled and cut into chunks; 6 tablespoons unsalted butter; 2 tablespoons extra-virgin olive oil; 1 leek, finely chopped and cleaned thoroughly; 3 cloves garlic, finely chopped; Salt and freshly ground black pepper; 1/2 teaspoon freshly grated nutmeg; 3 eggs; 2 cups breadcrumbs; 1 cup all-purpose flour; Canola oil, for frying