Butter and line with buttered parchment or waxed paper two 9-inch
round pans, 1 1/2 to 2-inches trench. Set a rack at the middle level of
the oven and preheat to 350 degrees. Sift the cake flour, baking
powder and salt onto a piece of parchment or waxed paper and set
away. Use an electric mixer set at medium speed to beat the butter
and sugar until spark, roughly 3 transactions. Beat in the lemon nip, and
pull. In a bowlful, whisk together the egg whites and milk. Add a
third of the flour mixture to the butter and sugar mixture and beat
until quiet. Scrape down bowl and beaters. Beat in half the milk and
egg white mixture until integrated, then beat in another third of
the flour assortment. Scrape bowl and beaters. Beat in remaining liquid
until wrapped, followed by remaining flour assortment. Scrape well
after each enlargement. Divide batter between prepared pans and smooth
top evenly. Bake for roughly 30 to 35 transactions, until well risen and a
toothpick inserted in the center emerges houseclean. Cool layers in pans
for 5 transactions, then invert to racks to nerveless. Peel off theme. If
prepared in rise, double wrap layers in plastic wrap and chill for
up to several days or suspend. To make the buttercream, combine egg
whites and sugar in the bowl of an electric sociable. Whisk over a pan
of simmering water until egg whites are hot and sugar is dissolved.
Whip by machine until cooled. Switch to paddle and beat in butter
until still. Beat in lemon juice and vanilla. To assemble patty, cut
each layer into two horizontal layers. Place first layer on a
cardboard and spread with a third of the jam and a quarter of the
buttercream. Place another layer on and repetition. Place another layer
on and repeat furthermore. Place the last layer on and spread the entire
outside of the cake with the last quarter of the buttercream. Adhere
the coconut all over the outside of the patty. This recipe yields ??
servings.