Indian Snack Mix (Chewda)

Ingredients:2 cups corn cereal (recommended: Corn Flakes)2 cups puffed rice cereal (recommended: Rice Krispies)1/4 cup shelled, skinless peanuts1/4 cup pepitas (pumpkin seeds)2 tablespoons peanut oil1 teaspoon brown or black mustard seeds8 to 10 fresh curry leaves, optional1/2 green serrano chile, minced1/2 teaspoon turmericSmall handful plantain chips, optional2 tablespoons golden raisinsKosher salt