Tools

Stand Mixer

Ingredients

For the cupcakes:

• Caster sugar  200 g
• Unsalted butter  110 g   - cubed, at room temperature
• Eggs   2
• Lime juice  3 tsp
• Lime   2   - zest of
• Mint extract  0.25 tsp
• Plain flour  190 g
• Baking powder  1.5 tsp
• Salt   0.6 tsp
• Sour cream  112 g
• White rum  2 Tbsp
• Green food colouring As needed

For the buttercream:

• Unsalted butter  250 g   - cubed, at room temp
• Icing sugar  500 g
• White rum  4 Tbsp
• Lime juice  2 Tbsp
• Mint extract  0.25 tsp

For the decoration:

• Lime   1
• Lime    1   - sliced
• Mint leaves   As needed  
   

Method

Step 1 - Making the cupcakes:

1. Preheat the oven - 175ºC
2. Line a cupcake tin with cupcake cases
3. Fit the K-Beater
4. Add butter and sugar into the appliance bowl
5. Mix and then scrape the bowl - 2 minutes, speed 3
6. Then add eggs, mint extract, lime juice and lime zest
7. Mix – 2 minutes, speed 3
8. Then add flour, baking powder and salt
9. Mix – 1 minute, speed 1
10. Then add sour cream, white rum and green food colouring
11. Tip: Aim for a vibrant green colour
12. Mix – 2 minutes, speed 2
13. Divide the mixture between the cupcake cases
14. Bake – 15 minutes, 175ºC
15. Remove from the oven and let cool completely

Step 2 – Making the buttercream:

1. Clean the appliance bowl and fit the K-Beater
2. Add butter, icing sugar, rum, lime juice and mint extract into the appliance bowl
3. Mix and then scrape the bowl – 2 minutes, speed 3
4. Tip: Start the machine on speed Min and gradually increase speed
5. Mix – 2 minutes, speed 1
6. Transfer the buttercream into a piping bag fitted with a large open star tip
7. Pipe swirls of the buttercream onto each cupcake
8. Then zest one lime over the cupcakes
9. Decorate with lime slices and mint leaves

Serve
Store covered at room temperature for up to two days