Swiss Meringue Buttercream
Swiss Meringue Buttercream is stiffer than regular buttercream, but is susceptible to the same melting in higher temps.
Ingredients
180g Egg Whites
400g Sugar
340g Unsalted butter
2 Teaspoons vanilla extract (or more, depending on your tastes)
1/8th teaspoon salt
Method
Add eggs and sugar to a steel / copper bowl
Place bown in bain marie style to a sauepan of boiling water - only allow steam to touch the bowl, not the water
Whisk the egg whites until they reach 71°C - Just keep them constantly moving
Remove from heat, and pour into the mixer
Whisk until meringue-ey (holds stiff peaks)
Continue whisking and add butter in 1 thumb sized knob at a time until full incorporated