Instructions

• Preheat your oven to 350°F. Grease and flour your tube or bundt pan.
• Separate your 9 eggs into two bowls.
• In the yolk bowl, use half the sugar, about 125 grams, and whisk with yolks until pale and fluffy.
• Add the lemon zest, reserved lemon juice, and orange juice to the yolk mixture and blend well.
• Mix the cake meal, potato starch, and salt. Stir into yolk mixture just till combined.
• Beat egg whites with a mixer until soft peaks form.
• Add the remaining sugar gradually to the egg whites and beat till stiff and glossy peaks form.
• Gently fold egg whites into batter in three parts.
• Pour batter into prepared pan and shake to even the batter.
• Place pan on rack inside pressure cooker, add enough water to avoid touching the pan.
• Seal the lid, cook on high heat until valve hisses, then reduce to low and cook for 30 minutes.
• Let it naturally release before opening the lid, then remove your cake.