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Plum & Thyme Upside-Down Cake {gluten-free}

April 22, 2020 by Salma 10 Comments

This tiny gluten free plum cake is laced with tangy lemon thyme syrup, and showcases jewelled plum tones in a delightful small batch autumn treat.

This tiny plum cake is perfect for those craving the joy of small batch baking in today’s current climate. This recipe is relatively simple to make, requires minimal ingredients, is gluten-free, and best of all showcases the delightful plum in all its glory. I’ve chosen to use Queen Garnet plums for their jeweled tone interior, giving rise to the violet highlights on the cake, but any seasonal variety of plum would taste just as delicious. Ensure to line the tin carefully, especially the base, and if available, use a springform tin to easily release the cake. If there any mishaps extracting the cake from the tin, rest assured they can easily be disguised by decorating the cake with extra slices of fresh plum.

This tiny gluten free plum cake is laced with tangy lemon thyme syrup, and showcases jewelled plum tones in a delightful small batch autumn treat.
This tiny gluten free plum cake is laced with tangy lemon thyme syrup, and showcases jewelled plum tones in a delightful small batch autumn treat.
This tiny gluten free plum cake is laced with tangy lemon thyme syrup, and showcases jewelled plum tones in a delightful small batch autumn treat.
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Plum & Thyme Upside-Down Cake (gluten-free)

Plum & Thyme Upside-Down Cake {Gluten-free} | The Polka Dotter

★★★★★

5 from 2 reviews

This tiny gluten free plum cake is laced with tangy lemon thyme syrup, and showcases jewelled plum tones in a delightful small batch autumn treat.

  • Author: Salma

Ingredients

Scale

Plum Upside-Down Cake (gluten-free)

  • 2 medium size plums, washed, plus extra to serve
  • 125g unsalted butter, softened
  • 140g caster sugar
  • Zest of 1 lemon
  • 2 large eggs, at room temperature
  • 175g almond meal
  • ½ tsp baking powder
  • 1/8 tsp fine sea salt
  • Juice of ½ lemon

Lemon Thyme Syrup

  • Zest of 1 lemon
  • Juice of 1 ½ lemons (approx. 100ml)
  • 140g caster sugar
  • 6–8 springs of thyme, washed

Instructions

Plum Upside-Down Cake (gluten-free)

  1. Preheat oven to 165°C (145°C fan-forced) and line 15cm (6″) cake tin with baking paper (ensuring a neat paper circle on the base).
  2. Slice each plum into 6-8 slices and carefully arrange on base of cake tin in a circle, ensuring each plum piece is flush with the base of the tin.
  3. Beat butter, sugar and lemon zest in stand mixer on medium speed until pale and fluffy.
  4. Add eggs one by one while beating on medium speed, scraping the bowl between each egg to ensure ingredients are well combined.
  5. Combine almond meal, baking powder and salt in a medium bowl, then slowly add half the dry ingredients to the mixer while beating on low-medium speed.
  6. Continue beating while adding half the lemon juice, then remaining dry ingredients, then remaining juice, until well combined.
  7. Pour batter into prepared pan, taking care not to displace the plum slices, and ensuring a smooth surface.
  8. Bake for 45-50 minutes until golden and a skewer inserted comes out clean.
  9. Prick the surface of the cake with a skewer or cake tester with at least 15-20 holes. Spoon two-thirds of the warm lemon thyme syrup over the cake, allowing the syrup to absorb into the hot cake, then cool completely in pan.

Lemon Thyme Syrup

  1. Reserve 2 sprigs of thyme for decorating the cake, then finely chop or bruise remaining thyme in a mortar and pestle.
  2. Place sugar and juice in a small saucepan on medium heat and stir to dissolve sugar.
  3. Simmer for 12-15 minutes until mixture thickens slightly and coats the back of a spoon, then place chopped thyme in syrup and allow to infuse for another 2-5 minutes. Keep warm to drizzle over hot cake.

To Serve

  1. Place cake on serving plate and drizzle with remaining lemon thyme syrup.
  2. Decorate with sprigs of thyme, and serve with extra slices of fresh plum if desired.

Enjoy! 

Notes

Makes one round 15cm (6”) cake and serves 6 people

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Filed Under: Cakes Tagged With: Gluten-free, Plum, Thyme

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Reader Interactions

Comments

  1. Home Cake Baking

    May 21, 2020 at 11:14 pm

    I really liked your post. I read your blog quite often and I just shared it on Twitter.

    Keep up the good work.

    ★★★★★

    Reply
    • Salma

      July 12, 2020 at 11:06 pm

      Thanks for the comment and glad to hear you enjoyed it.
      Kind regards,
      Salma

      Reply
  2. Ruby

    June 7, 2020 at 7:44 am

    Hi would we be able to use dry thyme as s substitute?

    Reply
    • Salma

      June 7, 2020 at 9:11 pm

      Hi Ruby,

      Thanks for your query. I haven’t tried dried thyme in this particular recipe, but it should impart a very similar effect and flavour in the syrup. Let me know how you it goes.

      Kind regards and happy baking,
      Salma

      Reply
  3. Andy

    June 28, 2020 at 9:45 am

    Just made this today! Super yummy. 😋

    ★★★★★

    Reply
    • Salma

      July 12, 2020 at 10:47 pm

      Hi Andy,
      Thanks so much for stopping by to bake this recipe and leave a lovely comment. I am delighted to hear you enjoyed it. This recipe is quickly becoming one of the most popular on the blog!
      Kindest,
      Salma

      Reply
  4. Jen

    September 13, 2020 at 7:33 am

    Hi there, Beautiful pictures and wonderful combination of sweet and savory:) Do you invert the cake, hence drizzling the syrup on the top ie the side the plums are displayed on? Or are you adding the syrup to the bottom ie the up side when the cake is still in the pan;)?

    Reply
    • Salma

      September 15, 2020 at 10:21 pm

      Hi Jen,
      Thanks for the lovely comments and for your query. The answer is a bit of both! Drizzle two-thirds of the warm syrup over the hot cake while it is still cooling in the pan (on the “non-plum” or “bottom” side), reserving the remaining one-third to drizzle on the cooled cake when serving. The cake absorbs the warm syrup well and keeps it lovely and moist, while drizzling the remainder for serving keeps it looking fresh and appetising, and imparts an extra kick of lemon and thyme. Hope this helps and happy baking!
      Kind regards,
      Salma

      Reply
  5. Kasey

    October 16, 2020 at 1:44 pm

    Is the recipe for a standard 8 or 9 inch cake tin? I don’t see it listed in the recipe.
    Thanks

    Reply
    • Salma

      October 19, 2020 at 11:18 am

      Hi Kasey,
      Thanks for your query. This recipe is best suited for a 15cm (6″) cake tin. I do apologise for the inconvenience, the recommended cake tin size had slipped off the ‘Instructions’ section during the recipe editing stage, and was only listed in the ‘Notes’ section, so I have updated the recipe to include the sizing again in both sections. If you do only have an 8″ recipe tin though, you are welcome to double the recipe quantity and bake it for a little longer (approximately 10 mins). The larger size may be a little more difficult to handle being gluten-free, so just take care when transferring it out of the tin. Also, you may wish to incorporate an extra small round of slices in the middle to cover more of the cake surface being a larger cake, or decorate it after with extra fresh slices. Hope these tips help and happy baking!

      Kindest,
      Salma

      Reply

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Hi, I’m Salma, and I love creating beautiful images and sweet treats. If you’re looking for a little baking inspiration, you’ve come to the right place.

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