Hummingbird Bakery marshmallow cupcakes recipe

(495 ratings)

Marshmallow cupcakes
  • healthy
Preparation Time40 mins
Cooking Time30 mins
Total Time1 hours 10 mins
Cost RangeCheap
Nutrition Per PortionRDA
Calories328 Kcal16%
Sugar45.7 g51%
Fat10.1 g14%
Saturated Fat5.4 g27%
Protein3 g6%
Carbohydrates56 g22%

These gooey marshmallow cupcakes by The Hummingbird Bakery take just 30 minutes to bake and taste as good as they look. 

Melted marshmallows make these cupcakes extra sticky and moreish. Each cupcake is topped with a thick layer of readymade vanilla frosting mixed with mini marshmallows. You could opt for our homemade buttercream recipe (opens in new tab) instead if you’d like to make your frosting from scratch. These cupcakes are also infused with vanilla.


  • 120g plain flour
  • 140g caster sugar
  • 1½ tsp baking powder
  • a pinch of salt
  • 45g unsalted butter, at room temperature
  • 120ml whole milk
  • 1 egg
  • ¼ tsp vanilla extract
  • 12 medium pink marshmallows
  • 200g mini marshmallows

For the frosting:

  • 1 quantity vanilla frosting
  • Edible glitter, to decorate
  • A 12-hole cupcake tray, lined with paper cases




  1. Preheat the oven to 170°C (325°F) gas 3.
  2. Put the flour, sugar, baking powder, salt and butter in a freestanding electric mixer with a paddle attachment (or use a handheld electric whisk) and beat on slow speed until you get a sandy consistency and everything is combined. Gradually pour in half the milk and beat until the milk is just incorporated.
  3. Whisk the egg, vanilla extract and remaining milk together in a separate bowl for a few seconds, then pour into the flour mixture and continue beating until just incorporated (scrape any unmixed ingredients from the side of the bowl with a rubber spatula). Continue mixing for a couple more minutes until the mixture is smooth. Do not overmix.
  4. Spoon the mixture into the paper cases until two-thirds full and bake in the preheated oven for 20–25 minutes, or until light golden and the sponge bounces back when touched. A skewer inserted in the centre should come out clean.
  5. Leave the cupcakes to cool slightly in the tray before turning out onto a wire cooling rack to cool completely.
  6. Put the medium marshmallows in a heatproof bowl over a pan of simmering water. Leave until melted and smooth.
  7. When the cupcakes are cold, hollow out a small section in the centre of each one and fill with a dollop of melted marshmallow. Leave to cool.
  8. Stir the mini marshmallows into the vanilla frosting by hand until evenly dispersed.
  9. Spoon the frosting on top of the cupcakes and decorate with edible glitter.

Top tips for making marshmallow cupcakes

This recipe includes how to melt marshmallows on the hob but you can also melt marshmallows in the microwave. Just make sure you melt them in short bursts at a low temperature so they don’t burn.

You might also like…

Cupcake recipe (opens in new tab)

Chocolate cupcake recipe (opens in new tab)

The Hummingbird Bakery’s vanilla cupcakes recipe (opens in new tab)

Jessica Dady
Senior Content Editor

Jessica Dady is Senior Content Editor at and has over 10 years of experience as a digital journalist, specialising in all things food, recipes, and SEO. From the best food hampers to cookbooks, from the best cake stands to baking sets, Jessica has a wealth of knowledge when it comes to must-have food products. A passionate baker, she spends much of her time creating celebration cakes for friends and family - particularly for her two lucky children.