Ingredients

  • 1 1/2 tablespoons cumin seeds
  • 1 teaspoon black mustard seeds*
  • 1/2 teaspoon ground coriander
  • 1/2 teaspoon ground turmeric
  • Pinch of cayenne pepper
  • Pinch of fennel seeds
  • 1 tablespoon minced peeled fresh ginger
  • 1/4 cup plus 1 tablespoon canola oil
  • 2 to 3 white onions, chopped (4 cups)
  • 2 1/2 pounds red yams or sweet potatoes, grated (4 cups)
  • 5 tablespoons whole wheat flour
  • 1 large egg, beaten
  • 1 1/2 teaspoons kosher salt
  • 1 cup plain yogurt
  • 1/2 cup chopped scallions, white and green parts, for garnish

Method

  • Combine the cumin seeds, mustard seeds, coriander, turmeric, cayenne, fennel seeds, and ginger in a small bowl. Stir well to blend.
  • In a large saute pan set over medium heat, heat the 1/4 cup oil. Add the onions and cook, stirring occasionally, until they are caramelized to a golden brown, 10 to 15 minutes. Reduce the heat to low and add the spice mixture. Cook for 1 to 2 minutes to toast the spices. Transfer the mixture to a bowl. Add the yams, flour, egg, and salt, and mix well to combine. Form the mixture into cakes that are about 3 inches in diameter and 1/4 inch thick, and put them on a baking sheet.
  • Set a skillet over medium-low heat and add the remaining 1 tablespoon oil. Working in batches, saute the cakes for 3 to 4 minutes on each side. They are done when they are a crispy golden brown and the sweet potato is cooked through.
  • Serve warm, topped with the yogurt and scallions.