1cupunsalted butterroom temperature, cut into pieces
1teaspoonvanilla extract
Instructions
In a saucepan, combine sugar and water. Heat over medium heat until sugar dissolves and mixture reaches 240°F (115°C).
While the sugar syrup is heating, beat egg whites in a stand mixer until soft peaks form.
Once the syrup reaches 240°F, slowly pour it into the egg whites while the mixer is running on low speed. Increase speed to high and beat until the mixture is cool and glossy.
Add butter, one piece at a time, beating well after each addition. Continue to beat until the buttercream is smooth and creamy. Add vanilla extract and mix until combined.