Make a 3-Minute Syrup Sponge

I am really excited about this super easy-to-make 3-minute syrup sponge cake. It makes sponge making so fast and is ideal for anyone who has a microwave.

I found out about it when my sister was telling me about someone who wanted to make a sponge in their slow cooker. Someone said why when you can microwave it!

When my sister told me about it I was dubious because I’d seen this quick-to-make thing before and they never normally work. My sister insisted they did as she and her children had made them so I took my sponge recipe and adapted it to make a syrup sponge and reduced it in size so it was ideal for fewer people.

When I made it I remember taking it up the stairs to eat thinking what a brilliant idea this was and how much easier to make it was – then I stopped.  Maybe it’s a little too easy to make. So easy that you could make them while waiting for the kettle to boil!

I was right since then I have experimented with several different flavours and styles some more successful than others.

3 minute Microwave syrup sponge cake

Easy To Make 3 Minute Microwave Syrup Sponge Cake Recipe

Easy 3 Minute Microwave Syrup Sponge Recipe

This is a quick and easy to make syrup sponge cake recipe that anyone can do.

Course Dessert
Keyword microwave, sponge cake, syrup
Prep Time 1 minute
Cook Time 3 minutes
Total Time 4 minutes
Servings 2


  • 2 oz Self Raising Flour 56g
  • 2 oz Softened Butter or Baking Margarine 56g
  • Golden Syrup
  • 2 oz Caster Sugar 56g
  • 1 egg Egg
  • 0.5 teaspoon Vanilla Extract


Bowl One

  1. Beat the butter and sugar together until they are soft and fluffy

  2. Add the egg and beat that into your mixture

  3. Now add the flour and mix in thoroughly

Bowl Two

  1. Add your syrup to the base of a greased microwave safe bowl until it fills the base.

  2. Add your mixed ingredients on top of the syrup.  Note: It will barely cover it, don’t worry this is right.

  3. Pop into the microwave. Heat for 3 minutes on High for an 800W, 3.5 Minutes for a 700W microwave.

  4. Remove and tip out into a dish and serve. You can add more syrup for effect if you want to. 

Recipe Notes

Make sure your bowl is the right size for the mixture and suitable for the microwave. 

Please note the mixture rises several times its size so make sure the bowl is big enough to allow for expansion.

You need just over 1/2 litre or 1-pint bowl narrow at the base if possible as this works best. 

3 Minute Microwave Sponge Cake

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