For the cake, preheat the oven to 350ºF /180ºC/moderate. Butter and dust with flour in a medium-sized baking pan. (9x12

Using an electric mixer, beat eggs until foamy. Add the cake mix, pudding mix, stir the vegetable oil, water and egg and beat until a smooth, even batter is obtained. in – 22x30cm).

In a bowl, combine cake mix and pudding mix.

Pour into prepared baking pan and bake for about 25 minutes until cake is golden brown, risen, and an inserted toothpick comes out clean.

Meanwhile, prepare the soaking syrup. In a bowl, combine melted butter, water, and lemon juice. Stir powdered sugar and mix until thick.

Remove cake from the oven and let sit for 5 minutes. Using a fork or a skewer, poke all surfaces. Spread syrup evenly. Let cake rest at room temperature for about 2 hours, take it to the fridge for at least 2 more hours, or up to 3 days, and serve.