Horse gram (ulavalu) is used in Ulava Charu for its unique earthy, slightly bitter, and astringent flavor, which provides a distinctive taste profile unlike other lentil-based soups. It also contributes to the soup's thick, creamy texture and nutritional value.
Ulava Charu is a traditional South Indian soup, specifically from Andhra Pradesh, and its defining ingredient is horse gram. The purpose of using horse gram is multifaceted:
Unique Flavor: Horse gram has a distinct flavor profile that is earthy, slightly bitter, and astringent. This is quite different from the milder, sweeter, or more savory flavors of other lentils like toor dal (split pigeon peas), masoor dal (red lentils), or moong dal (split green gram). The unique taste of horse gram is what gives Ulava Charu its characteristic and recognizable flavor.
Texture: When cooked, horse gram lends a thick and creamy texture to the soup. This is due to its high protein and fiber content, which breaks down during cooking and creates a rich, velvety consistency. Other lentil-based soups may be thinner or have a different mouthfeel.
Nutritional Value: Horse gram is a nutritional powerhouse, packed with protein, fiber, iron, and calcium. It's considered a warming food in Ayurveda and is believed to have several health benefits. Using horse gram in Ulava Charu enhances the soup's nutritional value compared to soups made with other, less nutrient-dense lentils.
Traditional Significance: The use of horse gram in Ulava Charu is deeply rooted in tradition. It's a staple ingredient in Andhra cuisine, and its unique properties contribute to the authenticity and cultural significance of the dish.
In contrast, other lentil-based soups often rely on spices and vegetables to create their flavor profiles. While Ulava Charu also incorporates spices, the base flavor is undeniably derived from the horse gram itself. The bitterness and earthiness of horse gram are balanced with tamarind, chilies, and other spices to create a complex and satisfying flavor experience that is distinctly Ulava Charu.
Roasting the horse gram lightly before cooking can enhance its flavor and reduce some of its bitterness. Be careful not to burn it, as this will make the soup taste acrid.