How to Thicken Soup or Sauce: 7 Proven Methods
Quick take: From roux to purees, thickening soups and sauces depends on your desired texture, flavor impact, and dietary needs.
Roux adds richness and body. Whisk 2-3 tablespoons into your soup for creamy results.
Cornstarch slurry (1 tablespoon cornstarch + 1 tablespoon cold water per cup of liquid) is quick and neutral-tasting. Add at the end and simmer 2-3 minutes.
Pureed vegetables create silky texture while adding nutrition. Blend a portion of the finished soup—potatoes, carrots, or cauliflower work beautifully.
Reduction intensifies flavor while thickening naturally. Simmer uncovered until desired consistency.
Arrowroot powder handles frozen and thawed foods better than cornstarch.
Protein-based thickening (egg yolks, heavy cream) creates luxurious, silky textures.
Beans and legumes blend seamlessly for protein and fiber.