Preheat your oven to 320°F (160°C). Line a 9×5-inch loaf pan with parchment paper, ensuring the sides extend above the pan for easy removal.
Whip Eggs and Sugar:
In a large mixing bowl, beat the eggs with sugar using an electric mixer on high speed for 8–10 minutes until pale, fluffy, and tripled in volume.
Incorporate Condensed Milk and Butter:
Gradually fold in the sweetened condensed milk and melted butter, followed by milk and vanilla extract, using a spatula. Mix gently to maintain airiness.
Add Flour:
Sift the flour over the mixture and fold in carefully until just combined. Avoid overmixing to keep the batter light.
Bake:
Pour the batter into the prepared pan. Smooth the top and tap gently to release air bubbles. Bake for 50–60 minutes, or until a skewer inserted in the center comes out clean and the top is golden brown.
Cool:
Remove from the oven and let the cake cool in the pan for 10 minutes. Lift out using parchment paper and cool completely on a wire rack.
