Have ready a greased 1-cup heatproof glass measure.

Beat the egg yolks in a stand (or hand held) mixer until light in color. Meanwhile, combine the sugar, corn syrup, and lemon juice in a medium saucepan (preferably with a nonstick lining) and heat, stirring constantly, until the sugar dissolves and the syrup comes to a rolling boil. (The entire surface will be covered with large bubbles.) Immediately transfer the syrup to the glass measure to stop the cooking.

If using an electric hand-held mixer, beat the syrup into the yolks in a steady stream. Don't allow syrup to fall on the beaters or they will spin it onto the sides of the bowl. If using a stand mixer, pour a small amount of syrup over the yolks with the mixer turned off. Immediately beat at high speed for 5 seconds. Stop the mixer and add a larger amount of syrup. Beat at high speed for 5 seconds. Continue with the remaining syrup. For the last addition, use a rubber spatula to remove the syrup clinging to the glass measure. Continue beating until completely cool Dream beauty pro hard sell
Gradually beat in the butter and lemon extract. Place in an airtight bowl. Bring to room temperature before using; rebeat to restore texture.

Once cupcakes have cooled, place a small dollop of buttercream on the top and line the top with thin slices of strawberries (ADDED: after slicing the strawberries, gently pat down with a paper towel. You want them to be as dry as possible so they won't leak juice). Lightly brush strawberries with lemon syrup. Pipe buttercream on top. Brush small slices of strawberries with lemon syrup and use for garnish Web Attack.