Preheat the oven to 392º F (200º C). Line a rectangular pan of about (33 x 22 cm) with parchment paper and grease with butter. In a small bowl sift the flour and corn starch.
In a mixer bowl, beat the egg whites with the salt until they are white and fluffy. Add in the sugar little by little until firm peaks form.
Beat in the egg yolks one by one, beating non stop, then add in the honey, oil and vanilla extract.
Using a rubber spatula (for the egg whites not to deflate), integrate the flour mixture little by little until you get a soft, smooth mixture.
Pour this mixture on the pan and spread it all over with the rubber spatula. Bake on the top part of the oven for 12 to 15 minutes until it is slightly golden brown.
Put a piece of parchment paper on top of the kitchen countertop (of the same size as the pan) and sprinkle some confectioners sugar on it. Once out of the oven and shile still hot, -turn out the cake over the parchment paper, and roll it over itself widthwise and let it cool down for 15 minutes.
Once it has cooled down and has taken the roll shape, roll it out, take off the parchment paper and put it aside for when you need it again.
In a small pot on the stove over medium heat, put the berries and sugar together and cook mixing occasionally, for 8 minutes until the berries smash a little.
Meanwhile, in a small bowl, combine the corn starch with the water and stir this into the berries mixture. Add in the lemon juice and mix for 2 minutes until you get a less thick consistency than a marmalade.
Take off the heat and wait for it to completely cool down before using.
In a big bowl, put the confectioners sugar and cream cheese and mix using a whisk or an electric mixer for 3 minutes until the mixture lightens and gets fluffy.
Add in the vanilla and salt and beat for 2 more minutes until you get a soft mixture that´s thick enough to decorate the cake.
Once this is all ready, take the cake and spread some dulce de leche, then spread the berries sauce on it.
Roll it again and spread the frosting on top the way you want it and decorate with fresh fruit.
Refrigerate for at least 30 minutes before serving for it to set.
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