Step 1

Preheat oven to 350°F. Line a 9 x 9 inch baking pan with parchment paper.

Step 2

In a large bowl, add the egg yolks and half of the sugar (30 g). Whisk together until completely combined. Sift in the flour. Whisk together until a smooth paste forms.

Step 3

In the bowl of a stand mixer, add egg whites and mix at highest speed with a wire whisk attachment until egg whites turn foamy. Add in the remaining 30 g of sugar. Continue mixing at highest speed until egg whites form stiff peaks.

Step 4

Add 1/3 of the egg white mixture into the cake batter Gently fold with a spatula until no white streaks remain. Repeat with another 1/Repeat with remaining 1/Be careful to only mix until egg whites are just incorporated and to do so in a gentle folding motion using a spatula and not a mixer or whisk. If you mix too hard you will deflate the egg whites.

Step 5

Pour batter into prepared baking pan. Bake in oven for about 10 minutes or until a toothpick inserted comes out clean. Let cake cool completely before slicing and decorating.