
A thickener for creamy, savory soups is a foundational culinary component, not a standalone dish, used to add body and richness to soups like chowders, bisques, and cream-based stews. It is typically made from a roux (equal parts fat and flour cooked together), a slurry of starch and cold liquid, or blended ingredients like puréed vegetables or cream. Its use is ubiquitous in Western cuisines, particularly French and American comfort cooking.
Depending on the method, it can be high in carbohydrates and fat (if using a roux or cream) or primarily carbohydrates (if using a starch slurry). It provides a quick source of energy from carbs and fat, with minimal protein, and can contribute significant calories to a soup. A typical thickening agent portion for a serving of soup might add 50-150 calories.
| Calories | 120 kcal |
| Protein | 1.5 g |
| Carbs | 11 g |
| Fat | 8 g |
| Fiber | 0.5 g |
| Sugar | 0 g |
| Sodium | 10 mg |
| Iron | 0.6 mg |
| Thiamin (B1) | 0.1 mg |
| Niacin (B3) | 0.8 mg |
| Folate | 25 µg |
| Calcium | 15 mg |
| Selenium | 5 µg |
| Manganese | 0.1 mg |
| Phosphorus | 20 mg |
Per 1/4 cup (60 g) of a basic white roux (flour and butter) · estimated, varies by recipe
The art of making a perfect roux is a cornerstone of French cuisine, with its color (blonde, brown, dark) profoundly affecting the soup's final flavor and color. Nutritionally, thickeners are a key way to increase the satiety and caloric density of a meal, which was historically important for providing energy and warmth.