Upside-Down KeyLime Cupcakes

A recipe by Nadiya Bakes

Nadia . Can . Bake .

Our 9th recipe from Nadiya Bakes is Upside-Down KeyLime Cupcakes. This a relatively easy recipe and keeps well for a couple days in the fridge.

Major Modification

I highly suggest changing the lime on the bottom of this recipe. It doesn’t matter how thin you cut these they are basically a raw lime on the top. Every person I gave one too they just peeled lime off top to eat cupcake. I also don’t think the lime even looks that pretty. If you really want to keep the lime I suggest using candy limes. see below)

  1. Cut limes so almost translucent (a mandolin works well)
  2. In a saucepan set over high heat add 1/2 cup (125g) sugar and 1/4 cup (60ml) water and bring to simmer
  3. Whisk until sugar is completely dissolved
  4. Pour about 1 tablespoon into cupcake liner
  5. Add lime slice on top of syrup
  6. Add another tablespoon on top of lime

NOTE - I recommend using cupcake liners with foil inside - will be much easier to pop cupcakes out


Suggestions for Cake

  1. I added the zest of one lime (about 1 tablespoon) to cake batter. I wanted more lime flavour to come through
  2. Ensure egg is at room temperature
  3. I suggest creaming butter and sugar BEFORE egg and adding flour
  4. using a cookie scoop will ensure you have equal portions
  5. I decided to add 1/2 tablespoon of lime curd to the centre of each cake prior to baking

KeyLime Filling

  1. ensure eggs and cream are at room temperature
  2. limes vary in size so I think it is important to have a more accurate measurement

- 1.5 tablespoons zest/1/4 cup lime juice

   3.  You don’t need to use a beater to mix filling- just aggressively by hand mix all ingredients




Cookie Topping


I used President Choice lemon meringue cookies. They were a nice complement to cupcake. Whatever cookie you decide to use make sure flattest side is up so when you flip cupcake, they sit even and straight

NOTE - I only needed to bake my filling about 10-12 min to set fully


The Results

My rating of this recipe is 4 out of 5. I would definitely make again BUT would change lime on bottom as per my suggestions OR omitt completely and add a sliver of lime on whipping cream when served. 

For an extra blast of lime I added 2 tablespoons of lime curd to my whipping cream.

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