"Yummy street food from Indore, India. You can increase or decrease the spices based on preference. You can experiment with butter/dried cilantro/garlic powder, or top baked yams with fresh chopped cilantro. Serve hot."
Bring salted water to a boil in a pot. Add yams; cook and stir until slightly tender, 5 to 8 minutes. Mix oil, cumin, chaat masala, amchoor, turmeric, chili powder, salt, and pepper together in a container with a lid; add yams. Cover; shake until coated. Marinate 20 minutes to 2 hours.
Preheat oven to 350 degrees F (175 degrees C). Transfer yams to a baking pan.
Bake in the preheated oven until yams are tender, 25 to 30 minutes.