Peanut Fried Steak with Yogurt Turmeric Gravy

Name: Peanut-Fried Steak with Yogurt Turmeric Gravy
Ingredients: 2 cups plain whole-milk yogurt; 2 tablespoons Indian chickpea flour (besan); 2 teaspoons kosher salt; 1 serrano pepper, minced; One 1/2-inch piece ginger, peeled and minced; 2 tablespoons neutral oil, such as peanut, canola or vegetable; 4 cloves garlic, crushed; 1 teaspoon black or brown mustard seeds; 1 teaspoon cumin seeds; 1/2 teaspoon fenugreek seeds; 2 dried red chile de arbol or other small dried red chile; 2 sprigs fresh curry leaves; 1 teaspoon ground turmeric; 1/2 cup minced fresh cilantro leaves and soft stems; 1/2 teaspoon baking soda; 4 teaspoons kosher salt; Eight 4-ounce cube steaks; 2 cups all-purpose flour; 1 1/2 cups buttermilk; 2 large eggs; Peanut Podi, recipe follows; 1 cup cornstarch; 2 teaspoons baking powder; 3 cups neutral oil, preferably peanut oil; 2 cups roasted and lightly salted whole peanuts; 2 teaspoons neutral oil; 8 sprigs fresh curry leaves; 2 tablespoons cumin seeds; 4 large cloves garlic, chopped; 4 teaspoons Kashmiri chile powder