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Low-Carb Carrot & Lemon Curd Poke Cake

  • Ready in 6h
  • 5.4 g net carbs
  • 417 kcal
  • Serves 13
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Low-Carb Carrot, Zucchini & Lemon Curd Poke Cake (low-carb, gluten-free, primal)

Two of my favourite things combined in one recipe… cake and slow cooking! We are making this keto cake in a slow cooker! This low-carb carrot and zucchini cake has all the wonderful flavours of your favourite carrot cake but made keto friendly.

If you’ve not made a poke cake before, they’re wonderful. By poking holes in the base, the lemon custard filling layer oozes down into the base so all the flavours mix through. It’s delicious.

Cooking this keto carrot and zucchini cake in the slow cooker makes the base lovely and moist and means you can nip out to do any jobs you need to do and leave it cooking away. When you return the whole house will be filled with the welcoming scent of cake!

Making a poke cake takes a bit more time as you need to let all the layers cool but it’s totally worth it.

This low-carb cake can also be frozen for up to 3 months, just let it naturally defrost before eating. I hope you enjoy it!

Step-by-step

  1. Preheat the slow cooker on low setting. Make the cake base. Line your slow cooker (I used a 6-quart slow cooker) with strong parchment paper and turn the heat to low. (It is important to use firm parchment paper that doesn't tear, e.g. parchment paper lined with aluminium foil on one side)

  2. In a bowl, using a hand whisk, mix the wet ingredients for the cake base: eggs, lukewarm almond milk, melted butter and apple cider vinegar.

    Low-Carb Carrot, Zucchini & Lemon Curd Poke Cake (low-carb, gluten-free, primal)
  3. Place all the dry ingredients for the cake in a bowl: almond flour, coconut flour, whey protein powder, powdered Erythritol.

    Low-Carb Carrot, Zucchini & Lemon Curd Poke Cake (low-carb, gluten-free, primal)
  4. Add the carrots, zucchini, walnuts, ginger, vanilla powder, baking soda, salt and cinnamon.

    Low-Carb Carrot, Zucchini & Lemon Curd Poke Cake (low-carb, gluten-free, primal)
  5. Mix until well combined.

    Low-Carb Carrot, Zucchini & Lemon Curd Poke Cake (low-carb, gluten-free, primal)
  6. Pour the egg mixture into the bowl and process until smooth using an electric whisk.

    Low-Carb Carrot, Zucchini & Lemon Curd Poke Cake (low-carb, gluten-free, primal)
  7. Pour the batter into the lined slow cooker and cover with a lid. Cook on low for 3 – 3 1/2 hours (until the top is set). When done, remove the lid and let the cake cool down until it reaches room temperature.

    Low-Carb Carrot, Zucchini & Lemon Curd Poke Cake (low-carb, gluten-free, primal)
  8. Meanwhile, prepare the lemon custard filling. Juice the lemons. Place the egg yolks in a bowl. (Save the egg whites and use in another recipe.)

  9. Mix the yolks with the lemon juice and add lemon zest. Place the bowl over a pan filled with simmering water and stir continually, make sure the water doesn’t touch the bottom of the bowl. Continue stirring for 5 – 10 minutes or until the custard starts to thicken.

    Low-Carb Carrot, Zucchini & Lemon Curd Poke Cake (low-carb, gluten-free, primal)
  10. Remove from the heat. Add the butter or coconut oil and mix until dissolved.

    Low-Carb Carrot, Zucchini & Lemon Curd Poke Cake (low-carb, gluten-free, primal)
  11. Add homemade keto condensed milk and mix until combined.

    Low-Carb Carrot, Zucchini & Lemon Curd Poke Cake (low-carb, gluten-free, primal)
  12. Using the handle of a wooden spoon, poke several holes all over the cake base.

    Low-Carb Carrot, Zucchini & Lemon Curd Poke Cake (low-carb, gluten-free, primal)
  13. Pour the custard evenly over the cake base until covered and the holes are filled. Set aside. I left in a cool place for 2 hours to help the custard cool down and set.

    Low-Carb Carrot, Zucchini & Lemon Curd Poke Cake (low-carb, gluten-free, primal)
  14. Meanwhile, prepare the cream topping. Whip the cream or coconut milk (add powdered Erythritol if preferred) until stiff peaks form. Spread over the cooled cake.

  15. Finish with an even sprinkle of lemon zest. Grab the parchment paper with both hands and transfer the cake into the fridge to chill until set.

    Low-Carb Carrot, Zucchini & Lemon Curd Poke Cake (low-carb, gluten-free, primal)
  16. Once chilled and set, slice into 13 pieces (just like on the picture in this Keto Tiramisu Poke Cake recipe.

    Low-Carb Carrot, Zucchini & Lemon Curd Poke Cake (low-carb, gluten-free, primal)
  17. Optionally, enjoy with a drizzle of heavy whipping cream.

    Low-Carb Carrot, Zucchini & Lemon Curd Poke Cake (low-carb, gluten-free, primal)
  18. Store in the fridge for up to 5 days or freezer for 3 months.

    Low-Carb Carrot, Zucchini & Lemon Curd Poke Cake (low-carb, gluten-free, primal)
Low-Carb Carrot & Lemon Curd Poke Cake

Recipe

Low-Carb Carrot & Lemon Curd Poke Cake

★★★★☆4.4 (71 ratings)

A moist low carb carrot poke cake baked in your crockpot. This is the perfect sugar-free, gluten-free and keto ...

Hands on
1h
Overall
6h
Servings
13
5.4 g
Net carbs
10.9 g
Protein
39.1 g
Fat
417
kcal
PinRate

Ingredients makes 13 servings

  • Cake base:
  • Lemon custard filling:
  • Cream topping:

Instructions

  1. Preheat the slow cooker on low setting. Make the cake base. Line your slow cooker (I used a 6-quart slow cooker) with strong parchment paper and turn the heat to low. (It is important to use firm parchment paper that doesn't tear, e.g. parchment paper lined with aluminium foil on one side)

  2. In a bowl, using a hand whisk, mix the wet ingredients for the cake base: eggs, lukewarm almond milk, melted butter and apple cider vinegar.

  3. Place all the dry ingredients for the cake in a bowl: almond flour, coconut flour, whey protein powder, powdered Erythritol.

  4. Add the carrots, zucchini, walnuts, ginger, vanilla powder, baking soda, salt and cinnamon.

  5. Mix until well combined.

  6. Pour the egg mixture into the bowl and process until smooth using an electric whisk.

  7. Pour the batter into the lined slow cooker and cover with a lid. Cook on low for 3 – 3 1/2 hours (until the top is set). When done, remove the lid and let the cake cool down until it reaches room temperature.

  8. Meanwhile, prepare the lemon custard filling. Juice the lemons. Place the egg yolks in a bowl. (Save the egg whites and use in another recipe.)

  9. Mix the yolks with the lemon juice and add lemon zest. Place the bowl over a pan filled with simmering water and stir continually, make sure the water doesn’t touch the bottom of the bowl. Continue stirring for 5 – 10 minutes or until the custard starts to thicken.

  10. Remove from the heat. Add the butter or coconut oil and mix until dissolved.

  11. Add homemade keto condensed milk and mix until combined.

  12. Using the handle of a wooden spoon, poke several holes all over the cake base.

  13. Pour the custard evenly over the cake base until covered and the holes are filled. Set aside. I left in a cool place for 2 hours to help the custard cool down and set.

  14. Meanwhile, prepare the cream topping. Whip the cream or coconut milk (add powdered Erythritol if preferred) until stiff peaks form. Spread over the cooled cake.

  15. Finish with an even sprinkle of lemon zest. Grab the parchment paper with both hands and transfer the cake into the fridge to chill until set.

  16. Once chilled and set, slice into 13 pieces (just like on the picture in this Keto Tiramisu Poke Cake recipe.

  17. Optionally, enjoy with a drizzle of heavy whipping cream.

  18. Store in the fridge for up to 5 days or freezer for 3 months.

Nutrition per serving, 1 slice

Carbs 5%Protein 10%Fat 85% of calories

Net carbs
5.4 g
Total carbs
12.3 g
Fiber
2.9 g
Sugars
2.9 g
Protein
10.9 g
Fat
39.1 g
Saturated fat
19.3 g
Calories
417 kcal
Sodium
158 mg · 6.86% RDA
Magnesium
73 mg · 18.3% RDA
Potassium
350 mg · 17.5% EMR
Nutrition by ingredient

Serving size 1 slice

  • Gluten free
  • Dairy free
  • Nightshade free
  • Pork free
  • Avocado free
  • Fish free
  • Shellfish free
  • Beef free
  • Pescatarian
  • Vegetarian

Comments & ratings (8)

4.471 ratings
  • 5 ★52
  • 4 ★6
  • 3 ★7
  • 2 ★3
  • 1 ★3

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  1. Natalie

    Looks so delicious! I love the soft texture - this cake looks perfect for the season.

  2. Tammi

    This looks amazing! I'll give it a try in the Instant Pot (on slow cooker mode). Any tips on adapting it for the Duo 6QT model would be welcome but I'm fine with experimenting. 😊

    1. Martina @ KetoDietAuthor

      Hi Tammi, if I was to guess I'd say you need about 70% of the dough for similar results. For simplicity I would personally halve the cake base recipe and the topping (going by grams/oz and ml/fl oz), otherwise the cake would be too tall. As for the custard it's hard to divide an egg yolk so I would use 2 egg yolks, 60 ml lemon juice, 2 tsp fresh lemon zest, 3 tbsp butter and 2/3 cup homemade Keto Condensed Milk. You'll have more custard but I always think that's better than not having enough. I hope this helps!

  3. Christina

    You list egg white protein powder as a substitute for whey protein powder. I keep dried egg white powder (no additives) in my home because I'm pretty bad at separating yolks from whites. Is that the same as egg white protein powder?

    1. Martina @ KetoDietAuthor

      I've tried dried egg white powder before in a bundt cake and it worked too so I think you can swap it! 😊

  4. Christiana

    And if you don’t have a slow cooker . . . . ? Can it be cooked in an oven? It sounds so delicious, I would love to try it!

    1. Martina @ KetoDietAuthor

      Thank you Christiana! You can bake the cake base in the oven 😊 Have a look at this recipe for temperature and time, it should be similar but it's always better to keep an eye on it as the ingredients are not the same and the baking time may be affected: Keto Key Lime Poke Cake

      1. Christiana Hancox

        Thanks for that - will check it out!

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