Homemade Onion Gravy (NO Flour or Cornstarch!)

You read that right! This gluten free gravy is easy to make and flavorful without any added thickeners like flour or cornstarch!

Since going gluten free, I have to be very careful with store-bought gravies because many brands use wheat flour as a thickener (plus many other unwanted ingredients).

I used to make homemade gravy the traditional way – with a roux made from gluten free flour and clarified butter – but I wanted to find an easier way to make savory gravy without using a thickener.

Gravy Made from Onions 🧅

This tasty recipe is made by caramelizing onions in a pan and then blending with beef broth. Of course, as with most of my recipes, it’s highly customizable and can be tweaked to your preference. This is the super basic recipe which only has a few simple ingredients.

Onion Gravy Upper Content

Make this with Shepard’s Pie!

How Does it Thicken?

I use an immersion blender to blend all ingredients together while still hot because it works really well to combine everything into a smooth consistency. If you don’t have an immersion blender then a regular blender that can hold hot liquids would also work.

Just add everything into the blender once the onions are caramelized and blend until smooth. Be sure to mix while it’s still hot because it may not blend together as smooth if cooled.

Note about immersion blenders: use caution if trying for the first time, and make sure to use a deep pot for blending in case the hot liquid splatters!

Won’t it Taste Just Like Onions?

Of course! And that’s exactly we want 😋. It will have an onion flavor because onions are the star of the show, but the caramelization will help add depth so that it doesn’t taste like raw onion gravy (yuck!). I usually keep it simple with the seasonings and just add salt and pepper, but feel free to add in any others that you like! I also like to sauté my onions beforehand to add more savoriness and color to the final product.

The type of onions you’re using can also impact the overall flavor. For example, using sweet onions will add sweetness to your gravy, while white onions will have a more neutral taste that easier to customize. But if you like sweet gravy or want to try something new then go for it!

Beef broth also helps cut down on the onion flavor while adding savoriness, but you can also use chicken/veggie broth or water if you prefer. But don’t stop there! You can also add garlic cloves and/or herbs while the onions are caramelizing for added flavor.

Onion Gravy RC

How to Speed Up Cooking Time ⏲

This recipe is easy but can be a bit time consuming, especially if you’re making a large batch. One trick I use to speed up caramelization is to add a pinch of baking soda while the onions are cooking.

This is completely optional but I found it makes a huge difference in cooking time and it doesn’t change the flavor profile in any way (just don’t add too much!).

Can You Freeze?

Yes! This gravy can be kept in the freezer after cooling and storing in an airtight container. Note there may be some separation after thawing. If that happens, you can easily blend everything back together in a blender or on the stovetop.

Yield: 1 Cup

Homemade Onion Gravy (No Flour or Cornstarch)

Onion Gravy Upper Content

This easy to make gravy is thick and flavorful without any flour or cornstarch!

Prep Time 5 minutes
Cook Time 25 minutes
Total Time 30 minutes


  • 2 tbsp Gheeluxe Clarified Butter
  • 2 large onions, thinly sliced
  • 1 cup beef broth
  • 1/4 tsp baking soda, optional
  • Salt and pepper to taste


  1. Melt ghee in a stockpot or deep saucepan on medium heat.
  2. Add onions and sauté for a few minutes until browned.
  3. Turn heat to medium-low and cook until onions begin to caramelize.
  4. Add baking soda and garlic cloves. Stir until combined.
  5. Continue cooking until onions are desired color. Add beef broth and seasonings.
  6. Blend with an immersion or regular blender until smooth and thickened.


Use browning seasoning to add more color if needed.

If gravy is too thick, add more broth and blend until desired consistency is reached.

If gravy is too thin, continue cooking in pot on low heat until gravy cooks down a bit. It will also thicken more once it cools.

Did you make this recipe?

Leave a comment below and tag @gheeluxe #gheeluxe in your recreations!

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