Vegetable Koftas

Name: Vegetable Koftas
Ingredients: For the Koftas; 1 1/2 cups frozen mixed vegetables, thawed; 2 slices bread; 1 1/4 cups mashed potatoes; 1 serrano pepper, finely chopped; 1 onion, chopped; 1 teaspoon minced fresh ginger; 1 tablespoon chopped cilantro; 1 teaspoon salt; vegetable oil, for deep-fat frying; For the Gravy; 2 tablespoons butter; 2 medium onions, chopped; 1 teaspoon minced ginger; 2 tablespoons minced garlic; 2 teaspoons ground coriander; 1/2 teaspoon ground turmeric; 1/2 teaspoon garam masala; 1/2 cup tomato paste; 3/4 cup milk; salt to taste; 1/4 cup cream (optional); 2 tablespoons coarsely chopped cashews