In a bowl, whisk together the egg yolks, lemon zest, lemon juice, and sweetened condensed milk. Set aside.
In a seperate bowl whisk the egg whites to stiff peaks.
Slowly fold the egg whites into the egg yolk mixture.
Finally, fold through the oil.
Pour into a pudding dish and bake at 180 degrees celcius for 40 minutes, until golden and risen.
Serve warm!
