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1
Sauce Gribiche:
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Put the whole eggs and yolks, mustard, and some salt in a large bowl and mash them well together.
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3
To this paste, add the lemon juice and then the oil, drop by drop, as if making mayonnaise.
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Finish the sauce by adding the chopped herbs, capers, and cornichons.
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Taste and correct the seasoning.
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Roulade:
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Preheat the oven to 350 degrees F. Line a buttered 15 by 10.25, 1 inch deep sheet tray with parchment paper.
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Butter the paper, dust with flour, and tap out the excess.
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Melt the butter in a small saucepan over medium-high heat.
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Add the flour and cook, stirring, for 3 minutes.
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Gradually whisk in the milk.
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Transfer to a large bowl and whisk in the egg yolks , one at a time.
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Season with salt.
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Beat the egg whites until soft peaks form.
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Stir 1/2 of the whites into the yolk mixture and fold in the rest.
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Then fold in the chives and flaked mackerel.
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Pour the batter into the bottom of the prepared pan and smooth gently with a metal spatula.
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Transfer to the oven and cook until golden and firm to the touch, about 10 minutes.
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Cover the egg sponge with a buttered piece of parchment paper, buttered side down.
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Cover with a damp kitchen towel and invert onto a work surface.
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Peel off the paper from the top.
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Allow the Sponge to cool.
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Make the mayonnaise.
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Beat the cream cheese until smooth and fold in the mayonnaise, scallions, dill and lemon juice.
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When the sponge is cool, spread the filling and use a towel to roll it up.
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26
Cut into 1/2 inch slices with a serrated knife.
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Serve with Sauce Gribiche.