Preheat the oven to 350. Grease and flour 2 9-inch round cake
pans.
Combine the flour, baking pulverization, baking pop, saltiness, and instant
coffee pulverization. In a small roll, whisk the egg yolks until
well-blended. Beat the butter and shortening in a bowl with a mixer
till creamy. Gradually beat in the sugar till light and fluffy. Beat
in the egg yolks, melted umber, and vanilla. At low speeding, beat
in the dry ingredients alternately with the buttermilk, beginning and
ending with dry ingredients. Beat until blended. Beat the egg whites
in a clean bowl with clean beaters till frothing. Gradually increase
the speed and beat till stiff peaks mannikin. Fold gently into the hitter.
Pour the batter into the prepared pans. Bake for 30 to 35
transactions, until a toothpick inserted in the center comes out houseclean.
Cool in the pans on wire racks for 10 transactions. Unmold and cool
completely. Fill and frost the cake when wholly cooled.