Matzo Ball Soup

Name: Matzo Ball Soup
Ingredients: 1 cup matzo meal; 1 tablespoon baking powder; 4 teaspoons kosher salt, plus more for seasoning; 4 large eggs; 1/4 cup plus 3 tablespoons schmaltz, divided; 2 tablespoons chopped garlic; 2 large onions, finely chopped; 2 cups diced celery; 2 quarts chicken stock or low-sodium broth; Cooking spray, for greasing; 1 teaspoon ground fenugreek; 1 teaspoon freshly grated turmeric