Cake ingredients
flour - granulated sugar - baking powder - salt - unsalted butter - oil - whole milk - egg - vanilla - yogurt
Buttercream ingredients
egg whites - sugar - salt - unsalted butter - vanilla paste
1/ Beat butter into dry ingredients
2/ Add wet ingredients
3/ Mix until just combined
4/ Divide batter into two pans
5/ Bake, then cool on wire rack
6/ Make the swiss meringue
7/ Beat in the butter & vanilla
8/ Start with a crumb coat
9/ Decorate!