Substitute for Flour in Gravy: Gluten-Free Thickeners
When making gravy, the best substitute for flour is Cornstarch Slurry. Cornstarch is a more powerful thickener than flour, so you need half as much. Mix it with cold water first to prevent lumps, then whisk into simmering gravy. It creates a glossy, smooth gravy and is naturally gluten-free. Flour is the traditional thickener in gravy, creating a roux when combined with fat. It gives gravy its body, silky texture, and opaque appearance. The substitute needs to thicken liquid to a similar consistency without adding off-flavors.
Best Substitute
Cornstarch Slurry
1 tbsp cornstarch mixed with 2 tbsp cold water per 2 tbsp flour
Cornstarch is a more powerful thickener than flour, so you need half as much. Mix it with cold water first to prevent lumps, then whisk into simmering gravy. It creates a glossy, smooth gravy and is naturally gluten-free.
What else can I use instead of flour in gravy?
Arrowroot Powder
1 tbsp arrowroot mixed with 2 tbsp cold water per 2 tbsp flour
Gluten-free and creates a clear, glossy gravy. Don't boil after adding or it will thin out. Best for lighter gravies.
Mashed Potato Flakes
2 tbsp instant mashed potato flakes per 2 tbsp flour
Stir into simmering gravy a tablespoon at a time. Thickens quickly and adds subtle potato flavor. Naturally gluten-free.
Xanthan Gum
1/4 tsp xanthan gum per 2 tbsp flour
Extremely powerful thickener. Add a tiny amount at a time and whisk vigorously. Gluten-free. Can become slimy if you use too much.
Frequently Asked Questions
What can I use to thicken gravy instead of flour?
Cornstarch is the best substitute: use 1 tablespoon cornstarch mixed with 2 tablespoons cold water per 2 tablespoons of flour. It thickens gravy quickly, creates a smooth texture, and is gluten-free. Arrowroot powder works the same way.
How do I make gravy without flour or cornstarch?
Stir instant mashed potato flakes into simmering gravy, 1 tablespoon at a time, until it reaches your desired thickness. You can also reduce the gravy by simmering it uncovered for 15-20 minutes to thicken it naturally through evaporation.