Subtly impressive and made with just 3 ingredients. I’ve made it so many times, I can practically whip it up on autopilot now.

Add the butter.

Melt together using one of two methods:

Double Boiler Method:
Place the bowl over a saucepan with gently simmering water. Stir until smooth.

Microwave Method:
Heat in 20-second intervals, stirring between each, until completely melted and glossy.

Let the mixture cool slightly. It should be warm but not hot.

Step 3: Separate the Eggs
Carefully separate the egg whites from the yolks.

Place yolks in one bowl.
Place whites in another clean, grease-free bowl.

This separation is key to creating the cake’s airy texture.

Step 4: Beat the Egg Whites
Using a mixer, beat the egg whites until soft peaks form.