How to Make Marvellous Marshmallows!


Kirsty, we like to say is our resident baker, providing us with fun recipes to share with the shoal. This sticky sweet recipe is perfect for those who love the great outdoors. Inspired by traditional camping treats, this recipe is perfect treat this autumn.


  • 340g granulated sugar                              
  • 48g unflavoured gelatine powder
  • 280g liquid glucose
  • 1/2tsp salt
  • 5tsp vanilla extract
  • 150g icing sugar
  • 150g corn flour


Step 1

In a small bowl, mix the powdered gelatine with 120ml cold water and leave it to bloom for 5-10 minutes. It should resemble very grainy jelly. Melt in the microwave for 30 seconds and stir until there are no lumps. Pour the gelatine into the bowl of a stand mixer along with half of the liquid glucose and whisk on a low speed.

Step 2

To make the sugar syrup, pour the sugar, salt and remaining liquid glucose into a small saucepan with 240ml cold water. Using a thermometer as a guide, heat the syrup to approximately 112°C-115°C.

Step 3

Once the syrup reaches the right temperature, remove the thermometer, and slowly pour into the bowl of your stand mixer. Turn the mixer up to a medium-high speed and leave to run for 5 minutes. After 5 minutes, the mixture should have doubled in size and started to turn white. Turn the speed up again as high as it will go and leave to mix for 10 minutes

Step 4

It’s time to prepare your tin! Grease a deep 10×10-inch baking tin, line with cling film and grease again with a flavourless oil.

Once that’s done, sift the icing sugar and corn flour into a bowl and whisk to combine.

Step 5

At this stage, the marshmallow mixture should be able to hold its shape but if it’s still too thin and easily drops off the whisk, don’t panic – keep whisking and check it every couple of minutes until you get a long, thick drip shape. Add the vanilla and mix on high speed for another two minutes until it’s fully incorporated.

Step 6

Lightly grease a silicone spatula with oil and scrape your marshmallow mixture into your prepared tin. You will need to act fast as the marshmallow will immediately begin to set, and keep in mind that it’s very sticky. Spread the mixture into the corners of the tin and smooth the top, then sprinkle with a handful of your icing sugar/corn flour mixture. Leave the marshmallow to set at room temperature for at least 6 hours, preferably overnight.

Step 7

Turn the marshmallows out of the tin onto a surface dusted with icing sugar and corn flour. Cutting the marshmallows can be a challenge because they’re so sticky, so it’s best to soak a sharp knife in boiling water for a few minutes before slicing them into pieces. Pop the marshmallows into a bowl with the remaining icing sugar and corn flour and toss them around until they’re fully coated. Sift to get rid of any excess and enjoy!


Check out Kirsty’s blog here!