Walnut Coffee Cake: Low Carb & Keto

walnut coffee cake

Walnuts are very keto-friendly and can be made into delicious low carb desserts, such as this walnut coffee cake. It’s made with coconut flour, walnut meal, coffee powder, and other low carb ingredients and tastes so good.

Related reading: Best Nuts to Eat On A Keto Diet

Aside from being delicious, the cake has a moist texture and will remind you of your favorite moist coffee cake, but without the carbs.

This walnut coffee cake recipe from Elsie Yan can yield eight servings, and each serving contains only 1.9 grams of net carbs. So, even if you eat a slice or two, you are still within the allowed keto macro.

Related reading: What Are Net Carbs And Why Are They Important?

Health benefits of walnuts

Walnuts are ideal for the keto diet or any diet in fact because they contain healthy monounsaturated and polyunsaturated fats. They also contain alpha-linolenic acid, a type of omega-3 fatty acid that is present in plants.

They also contain the minerals biotin, manganese, molybdenum, magnesium, iron, calcium and vitamins E and B6.

Researchers have found that people who ate 3 ounces of walnuts a day as part of a healthy diet had improvements in heart health. The scientists said that these changes were likely due to improvements in gut health, as suggested by changes in gut bacteria.

Recipe notes 

Walnut meal is not the same as walnut flour. To make the meal place roughly chopped walnuts into a coffee grinder or seed and nut grinder with the coconut flour. The coconut flour absorbs the oil from the walnuts prevents them being turned into nut butter.

To make the meal pulse them carefully a few times for only a few seconds at a time or they will become too oily and turn into a paste. The texture should be like meal and not flour. Don’t worry if there are some larger pieces of nut in the resulting meal.

If you are unable to do this you can use ready prepared walnut flour but use 2 cups and omit the coconut flour.

You can use coconut cream, yogurt or sour cream instead of the whipping cream if you prefer.

For more cakes try this low carb recipe for a very delicious Cream Cheese Coffee Cake with Raspberries  or this Keto Coffee Cake Brunch Recipe.

Walnut Coffee Cake


Dry Ingredients

  • 120 grams/ 1 cup walnut meal
  • 40 grams/ 1/3 cup coconut flour
  • 8g / 1/2 tsp Baking Powder
  • 80 grams/ 6 1/2 tbsp Lakanto sweetener
  • 2 grams/ 1/2 tsp Redmond Real Salt
  • 20 grams/ 4 tbsp instant coffee powder
  • 30 ml/ 2 tbsp hot filtered water

Wet Ingredients

  • 3 large organic/pastured eggs
  • 60 ml unsalted grass-fed butter, melted
  • 180 ml/ 3/4 cup organic whipping cream


A few walnut halves for decoration


1. Preheat oven to 340℉ (170°C)
2. Grease a 6 inch cake pan with removable bottom and line with non bleached parchment paper.
3. Pour the coffee powder into the hot water to dissolve, then set aside.
4. Add all the dry ingredients to a bowl and mix well.
5. Then add all the wet ingredients to the dry ingredients whisking until everything is well combined.
6. Add the coffee liquid and whisk well until smooth and and thick.
7. Pour the batter into the prepared pan.
6. Tap the pan gently a few times and top the batter with walnut halves if using.
8. Place on middle rack of the preheated oven and bake for 40 – 50 min. Use a wooden skewer to check if the cake is cooked. Insert the skewer into the cake and if it comes out clean the cake is cooked.
9. Leave the cake to cool before dusting it with a little powdered sweetener (optional).

Here’s Elsie’s video demo of how to prepare this delicious and moist walnut coffee cake.


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