Keto cornbread

Keto cornbread

The love of cornbread is somewhat regional, but it’s universally loved. Having a delicious keto option is truly a treat. This version has a crisp crust, and a soft, but coarse crumb.

Keto cornbread

The love of cornbread is somewhat regional, but it’s universally loved. Having a delicious keto option is truly a treat. This version has a crisp crust, and a soft, but coarse crumb.
8 servingservings


  • ¼ cup 60 ml (30 g) coconut flour
  • 13 cup 75 ml (35 g) oat fiber
  • 13 cup 75 ml (30 g) whey protein isolate
  • 1½ tsp 1½ tsp (7 g) baking powder
  • ¼ tsp ¼ tsp salt
  • 4 oz. 110 g butter, melted
  • 13 cup 75 ml bacon fat or coconut oil, melted
  • ¼ cup 60 ml water
  • 4 4 eggeggs
  • ¼ tsp ¼ tsp corn extract (optional)


Instructions are for 8 servings. Please modify as needed.

  1. Preheat oven to 350°F (175°C). Place a greased 10-inch (25 cm) cast iron skillet in the oven to heat while you make the cornbread.
  2. Combine all dry ingredients in a bowl.
  3. Add the melted butter, bacon fat, eggs, and water. Beat with a hand mixer. Stir in the corn extract.
  4. Pour the cornbread mixture into the hot cast iron skillet and bake for about 18 to 20 minutes or until lightly browned and firm to the touch.


The corn extract is optional, but provides a more authentic, corn-like flavor. If you don’t have a cast iron skillet, a pie tin or small oven-proof skillet will work.

Whey protein isolate has casein and lactose removed and is not the same as whey protein, which can be highly insulinogenic. Please check the ingredients on whey protein isolate to make sure there are no added sweeteners.

Oat fiber is the pure insoluble fiber from the outer husk of the oat. Because it is not digestible, it does not impact blood glucose.


You can store this bread in the refrigerator for up to 5 days. I you want to freeze it, you can do so for up to 3 months. We recommend slicing it first and placing parchment paper in between for easy access to the right amount.

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  1. 1 comment removed
  2. Yvonne
    What brand of corn extract was used in this recipe
    Reply: #4
  3. Yvonne
    Where do i purchase oat fiber
    Reply: #5
  4. Kristin Parker Team Diet Doctor

    What brand of corn extract was used in this recipe

    Amoretti sweet corn extract.

  5. Kristin Parker Team Diet Doctor

    Where do i purchase oat fiber or - it tends to not be widely available in grocery stores. Look for Lifesource or Trim Healthy Mama as they are more mild in flavor.

  6. Nilima
    Is oat fiber grain/gluten free? Is their an alternative ingredient to this?
    Reply: #7
  7. Kristin Parker Team Diet Doctor
    Trim Healthy Mama brand is certified gluten free. There is no great substitute for oat fiber as it gives a good texture and adds bulk without adding any carbs.
  8. Marilyn
    I looked on amazon, $35.00 for 2 oz. of corn flavoring. Is it really that good? Do you use it for anything else? I love and miss cornbread.
  9. Danny
    :( I had really high hopes for this. It ended up tasting like an omelet. And the texture was nothing near the texture of cornbread.
    Reply: #10
  10. Danny
    Update:. Apparently I didn't wait long enough for it to set. I had some this morning and it was PERFECT! Could have used a tad more corn extract but that's a matter of personal taste.
  11. Susan Goode
    Instead of the pricey corn extract, I used what I had. Buttered Popcorn flavor from LorAnn Oils. Tasted good to me. The Amoretti might have been better, but man! Whew at the price.
  12. Anita
    I'm getting ready to make the cornbread and my skillet is hot. I don't add any grease to my skillet? Right?
    Reply: #13
  13. Kristin Parker Team Diet Doctor
    The first step does call for the skillet to be greased.
  14. Faye
    Great recipe!!
  15. Ruthann
    this is fabulous! While the corn extract is pricey it's worth it, especially since you use such a small amount. I figure at least 25 skillet's worth in a bottle and it makes a difference. Be careful what brand of Oat Fiber you use. I attempted to cheap out on this ingredient the first time and it was beyond nasty! Lifesource brand was light and fluffy and helped to give this an almost true cornbread texture. Will be making this again and again. Thank you Kristie for bringing back one of my favorite foods to the Keto world!
  16. Mary Jo
    Is there a substitute for whey protein isolate? I don't use that so it only comes in large containers and is very pricey.
    Reply: #17
  17. Kristin Parker Team Diet Doctor
    There is not a good substitute for the whey protein isolate. You can get Isopure unflavored in smaller 1lb packages from Amazon.
  18. Ledia
    i love every kristie recipe except this one. i just made three cornbread versions including this one. for this one i bought oat fiber and isopure to make this and this is just horrendous in every way. i prefer both the simple almond flour or coconut flour ones any day. i do love the corn extract tho and that makes
    those better.
  19. Angelica
    Salvado de Avena es lo mismo que la fibra de avena ?
  20. 1 comment removed
  21. Lois A.
    I accidentally rated it 1 star, but I love this recipe! It's the closest thing I've found to real cornbread, especially in texture. Definitely 5 stars!
  22. K Ray
    This cornbread is so yummy, thank you Kristie. I can't wait to share this and your chili with my coworkers. I might try it with cheese and jalapenos if I do will I need to change any of the ingredients?
  23. Danna
    This will be my go-to "cornbread" recipe forever! I use my cast iron skillet so it gets a nice crust, the texture is amazing, and it's refreshing to have a consistently good Keto bread recipe that is nut free. I used this as the base for Thanksgiving "cornbread" dressing last year, and it turned out great. (The quality of ingredients does matter, as others have said. Lifesource oat fiber is a must, as other brands can have a nasty smell and texture that affects the final product. Isopure is the only whey protein brand I've used, at I get great results so I'm sticking with that, too. I get them on Amazon, but I've heard others have found good prices on other websites.)

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