Beet Latkes With Walnuts and Horseradish Sour Cream Recipe

Name: Beet Latkes With Walnuts and Horseradish Sour Cream Recipe
Ingredients: For the Horseradish Sour Cream:; 1 cup sour cream; Horseradish, to taste (approximately 1 tablespoon); For the Latkes:; 1 1/2 pounds red beets, peeled, trimmed, and shredded on the shredding disk of a food processor (6 cups shredded); 4 cups chopped onion (about 4 medium onions); 1 pound russet potatoes, peeled, trimmed, and shredded on the shredding disk of a food processor (3 cups shredded); 6 medium cloves garlic, minced; 1/2 cup (2 1/4 ounces) chopped walnuts; 3 large eggs; 3/4 cup matzo meal, plus more as needed (see note above); 1 1/2 tablespoons kosher salt; 1 tablespoon freshly ground black pepper; Canola or peanut oil, for frying