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In a large mixing bowl, beat the softened unsalted butter with an electric mixer on medium-high speed until it becomes pale in color and fluffy in texture. This should take approximately 3-5 minutes.

Reduce the mixer speed to low and add the icing sugar and milk powder to the butter. Mix until just combined, scraping down the sides of the bowl as needed.

With the mixer still on low speed, slowly pour in the fresh cream and vanilla extract. Add the pinch of salt.

Increase the mixer speed to medium-high and whip the mixture until it is light, smooth, and airy. The buttercream should have a fluffy, non-greasy texture. This may take another 3-5 minutes.

To assemble, take a bun and carefully slit it from the side or top, creating a pocket for the cream. Be careful not to cut all the way through.

Using a piping bag or a spoon, fill the bun with approximately 30-40 grams of the prepared Korean butter cream.

For an optional finishing touch, lightly dust the filled bun with additional icing sugar before serving.


In a large mixing bowl, beat the softened unsalted butter with an electric mixer on medium-high speed until it becomes pale in color and fluffy in texture. This should take approximately 3-5 minutes.

Reduce the mixer speed to low and add the icing sugar and milk powder to the butter. Mix until just combined, scraping down the sides of the bowl as needed.

With the mixer still on low speed, slowly pour in the fresh cream and vanilla extract. Add the pinch of salt.

Increase the mixer speed to medium-high and whip the mixture until it is light, smooth, and airy. The buttercream should have a fluffy, non-greasy texture. This may take another 3-5 minutes.

To assemble, take a bun and carefully slit it from the side or top, creating a pocket for the cream. Be careful not to cut all the way through.

Using a piping bag or a spoon, fill the bun with approximately 30-40 grams of the prepared Korean butter cream.

For an optional finishing touch, lightly dust the filled bun with additional icing sugar before serving.
