Swiss meringue is more stable and smoother than a raw French meringue because the whites and sugar are heated together before whipping.
Cook · Recipe
Swiss Meringue Frosting
A glossy marshmallow-like frosting made by heating egg whites and sugar before whipping to stiff peaks.
At a glance
Recipe summary
- Prep
- 10 min
- Cook
- 10 min
- Rest
- 5 min
- Total
- 25 min
- Serves
- Enough for 12 cupcakes
- Skill
- Moderate
What you need
Ingredients
Metric US Ingredient
2 large 2 large egg whites
100 g ½ cup granulated sugar
1.25 ml ¼ tsp cream of tartar Optional, for stability.
5 ml 1 tsp vanilla extract Or another flavouring.
How to make it
Method
- Put the egg whites, 100 g sugar and optional cream of tartar in a clean heatproof bowl.
- Set the bowl over a saucepan of barely simmering water, ensuring the base does not touch the water.
- Whisk constantly until the sugar has dissolved and the mixture reaches about 70°C / 160°F.
- Remove from the heat and whisk with an electric mixer for 5 to 7 minutes until the meringue is thick, glossy and forms stiff peaks.
- Whisk in the vanilla and continue until the bowl feels only slightly warm.
- Spread or pipe onto completely cooled cupcakes. Toast lightly with a kitchen blowtorch if desired.
Useful notes
Equipment
- Heatproof mixing bowl
- Saucepan
- Balloon whisk
- Electric mixer
- Sugar thermometer recommended
- Piping bag optional
Substitutions
- Use lemon zest, coffee extract or another concentrated flavouring instead of vanilla.
- Use pasteurised carton egg whites only if the packaging confirms they are suitable for whipping.
Allergen notes
- Contains egg.
Storage
Use promptly for the best texture. Refrigerate frosted cakes for up to 2 days and bring them towards room temperature before serving. Do not leave egg-white frosting in a warm room for extended periods.
Tips
- Keep the bowl and whisk free from grease.
- Heat until the sugar is fully dissolved before whipping.
- Do not use a grill to toast frosted cupcakes unless they can be watched continuously; a blowtorch gives better control.