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Sardine and Sweet Potato Brownies for Dogs

Who says dogs can’t have brownies? While of course traditional style brownies are off limits for our canine companions, I have a dog-friendly brownie recipe to share with you today that is both super healthy and dog drool worthy. These Sardine and Sweet Potato Brownies for Dogs are chock full of omega-3 fatty acids from sardines as well as fiber, phytonutrients and antioxidants from sweet potato and my go-to grain-free superfood, buckwheat.

These Sardine and Sweet Potato Brownies for Dogs are the perfect treat for when your dog craves something a little extra special and may be getting bored of the traditional style dog cookie.

Let’s take a look at some of the superfoods found in this recipe.
  • Sardines: Although we may never think about making brownies for ourselves with sardines, dogs go absolutely crazy for them – especially when baked into a special treat! And the best part is that your dog won’t even know how healthy they are! Sardines are rich in the essential omega-3 fatty acids EPA and DHA, which are great for combatting inflammation while also giving our dogs’ skin and coat a nice shiny boost. The essential fatty acids found in sardines are also heart healthy and are great for brain health.
  • Buckwheat Flour: I have been including lots of treat recipes on my blog lately that include buckwheat flour. I love using this as a much healthier option to treats that contain grains, especially for dogs with a grain sensitivity. Buckwheat is known as a “superfood” for its many nutritional benefits, including containing a wide range of important minerals and stabilizing blood sugar.
  • Sweet Potatoes: Sweet potatoes are a great source of dietary fiber, but they are also rich in antioxidants to help keep inflammation at bay. It’s important that we pack our dogs’ diets with wholesome foods that can help protect their bodies from disease and sweet potatoes are a great addition. They are also delicious and help to keep these brownies from drying out!

Ready to bake up a batch of these sardine and sweet potato brownies for dogs? They are super simple and only require a handful of ingredients.

sardine and sweet potato brownies for dogs

Recipe: Sardine and Sweet Potato Brownies for Dogs

Makes: About 20 brownie bites

  • 1 can of wild sardines in water (or olive oil as long as you drain and rinse them well)
  • 1 baked sweet potato, skin removed (or you can use 1 cup of pure sweet potato puree; just be sure it is unsweetened and free from any other added ingredients)
  • 1 cup of buckwheat flour
  • 1 flax egg (1 Tbsp. of flax meal mixed with 3 Tbsp. of warm water)
  • ½ cup of water
  1. Start by preheating the oven to 300 degrees F and greasing a 9X9 pan or medium-sized loaf pan with coconut oil and lining it with parchment paper.
  2. Next, add all the ingredients minus the buckwheat flour to a food processor and blend until smooth.
  3. Slowly add in the buckwheat flour ¼ of a cup at a time.
  4. Bake for 30 minutes or until cooked through.
  5. Allow the brownies to cool and then slice into squares.
  6. Top with extra sweet potato puree if desired.
  7. Store in a sealed container in the fridge for up to 4 days, or freeze and defrost as desired.

I hope that you enjoy making this recipe and that your dog enjoys devouring them! If you do make them, please share your photos and comments below this post!

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  1. Darlene McCuaig-Balkwill says:

    These sound great. But I don’t understand the “flax egg (1 Tbsp. of flax meal mixed with 3 Tbsp. of warm water)”. Is it just the the flax meal mixed with water, or is there an egg added? Thanks for clarification.

    • Hi Darlene,
      “Flax eggs” are flax meal mixed with water. They do not contain eggs. I use them because many dogs are intolerant to eggs. But, for dogs who aren’t, you can just substitute one really egg for the flax “egg.”
      I hope that helps!

  2. Dawna Gray says:

    Hi pet food Diva!!
    Could I use one of the nut flours instead of the buckwheat flour?
    My little Yorkie-poo is being fed a product that comes from New Zealand. It is called Country Pet Naturals. This food is gluten free, grain free, non-GMO, free range and pasteurized and flash frozen. I feed him both the lamb and venison recipe.
    Their website is
    I have been feeding Cooper this food for about 2 years now. He had wrongly been diagnosed with a heart condition, thank goodness this isn’t the case. Cooper’s belly gets hard when he eats anything else. For treats I give him Trader Joe’s Liver snacks. The only ingredient is liver.
    Cooper weighs about 10-1/2 lbs. Too much for his little frame. I have not been able to get him to lose weight as he also has asthma and we live in the desert. It’s difficult to get him out for a walk due to the heat and right now we have high humidity.
    Anything you could recommend for Cooper’s diet would be appreciated. I asked my vet about the dog food but he was too busy to really have a good look at it.
    Thank you for all that you do!
    Dawna Gray

    • Hi Dawna,
      Thanks for your comment! I don’t typically recommend nut flours due to potential nut allergies and also the fat content of nuts. You could try a gluten-free flour such as chickpea flour or a gluten-free blend, such as from Bob’s.
      Regarding Cooper, it sounds like this is a case where you should contact me regarding working together, as when I work with dogs I do it in a very detailed manner and unfortunately can’t give general advice. If you would like to learn more about working with me, please complete the contact form on the Web site (under the Work with Me) page.

  3. AussieLady says:

    Could you use a real egg in the mix instead of flax meal? I’m wondering about making something like this for myself too. Is there some reason not to use a real egg for the dogs?

    • Hi Cindy,
      Yes, you can use one egg to substitute! The only reason I use the flax egg is because many dogs have an egg intolerance. For dogs that don’t, substituting a real egg is just fine.