Daised

I love Hollandaise sauce.

Let me rephrase that, "I love my Hollandaise." I'm sure that makes me sound like some kind of overbearing ego-jockey—which might not be entirely inaccurate—but I think it's more accurate than some alternatives I've heard. I could have said "traditional Hollandaise," for instance, but that's an imaginary beastie. Ask anyone with a smidgen of training in traditional French sauces and you'll probably get the Escoffier version of the yellow Mother Sauce: egg yolks, clarified butter, lemon, and salt. I learned to add a dash of white pepper. Others argue that cayenne is the traditional spice, and yet another cadre insists only black pepper can spike a proper Hollandaise. Being the nosy critter I am, I've tried all three. Yeah, de gustibus, but I find that black pepper comes across a bit harsh in Hollandaise. Cayenne gives the sauce a slightly skunky quality. White pepper has a piny note that melds beautifully with the lemon.

If you search the Internet for Hollandaise sauce recipes and instructions, you will find sauces made with cream, without salt, with lemon zest and white vinegar. I even found one made with sugar (this last from Alton Brown—I had no idea he dropped acid). None of these additions are necessary, and most of them make no sense. I have no objection to a little experimentation, but somehow it strikes me as disingenuous to describe something with cream or sugar as "Hollandaise." They should at least call it a variant. I've done several Hollandaise and Béarnaise variations with quite a bit of success: most recently basil/lime Hollandaise, Meyers lemon and cardamom Hollandaise. Being a Texan, I've naturally done jalapeño/lime Hollandaise and chipotle/mandarin orange Hollandaise. I would never advertise such concoctions as basic Hollandaise, however. They're variants. They will taste rich and buttery, but they will not taste like Hollandaise. Some of them won't even look like Hollandaise.

Historical research won't help you pin down a "traditional" ideal either. The first recorded version of a sauce with a name like "Hollandaise" was actually listed as "à la Hollandaise," or "the way they do it in Holland" (a description no one has ever been able to connect with any actual Dutch cooking practices). That particular Hollandaise concoction was made with stock and flour and no eggs. As far as any culinary historian has been able to determine, nothing coming out of Holland in the Eighteenth Century resembled either the original Sauce à la Hollandaise or modern Hollandaise Sauce.

Princess V theorizes that Hollandaise is a reference to the Seventeenth and Eighteenth Century commonplace that the Dutch are overfond of butter. It's the best explanation I've seen. A quick Internet search on "Dutch fondness for butter" yielded numerous literary references including Melville's Moby Dick and Jonson's Volpone.

How, in two centuries, did this sauce evolve from butter gravy to the more familiar velvety blond Eggs Benedict topping? I don't know, but I'm certainly grateful for the evolution.

What I'm not grateful for is restaurant Hollandaise. No doubt there are many great restaurants where Hollandaise sauce is still produced with a whisk, but most supposedly classy restaurants these days just don't think it worth the trouble. So, unless you're paying fifty bucks for a dish, you're probably getting blender-Hollandaise. It's pretty easy to tell: the blender stuff is paler and somewhat flat tasting. This stuff, made at a lower temperature than stovetop Hollandaise, is essentially eggy mayonnaise. For some reason, blender Hollandaise is also frequently made with too little lemon, which means it tastes like a whole lot of nothing at all.

Also, frankly, I am baffled by many foodies' insistence upon clarified butter in Hollandaise. Plain old unsalted sweet creamery butter produces a lush, full-bodied sauce, so why clarify it? Harold McGee (in the kick-ass food science bible On Food and Cooking) says clarification is a good idea because butter is 15% water, which works against emulsification by adding extra water into the mix (ironically, several of those goofy Internet recipes tell you to add water to the sauce). I've tried clarified butter, and I really didn't notice any fewer strokes of the whisk over the non-clarified stuff. Although clarifying certainly takes out the water, it also removes milk solids from the butter. My theory is that little bit of whey protein actually works to assist emulsification of the butter.

See, the basic trick of "real" Hollandaise and Béarnaise sauces is to combine liquefied butter with water-based flavoring agents (lemon juice, vinegar, herbs, shallots). Oil and water, unfortunately, don't mix. Water molecules being polar and oil molecules being non-polar, the two don't stay together for very long. One effective way to combine such uncooperative molecules is to supply a more complex set of emulsifying molecules that can combine with both polar and non-polar molecules. Some of the amino acid molecules in egg yolk are polar and some are bipolar. Unfortunately for the would-be emulsification, these molecules are combined in a knotted physical mesh. In order to access both the polar and non-polar sites on the amino acid molecules, you have to add enough energy to get the strands to relax. If you maintain that elevated temperature while whisking the mixture, you break up the butter and water-based elements into small enough droplets to link up with the protein strands. At a fairly neutral pH, this process would work best for egg yolks at roughly 160F to 170F. Unfortunately, those protein strands begin to clump up and curdle at just about 180F, and it's damned hard to keep the sauce in such a narrow temperature range for very long.

Isn't it just wonderfully fortunate, then, that adding acids (citrus or vinegar) raises the curdling point of the protein strands? If you drop the pH down to 4.5, you raise the curdling point to about 190F. Thus, the citrus in Hollandaise and vinegar in Béarnaise both flavor the sauces and allow them to be prepared at a slightly higher temperature, which simplifies the emulsification process.

To put all of this into practice, here's my basic Hollandaise sauce:

dramatis personae

Juice of one small lemon
Dash salt
Dash white pepper
Four egg yolks
Eight tbsp butter (one stick)

quality of ingredients

I usually use extra large eggs, but the yolks aren't much larger than those of large eggs.

Lemons are a crap shoot. Some of the plumpest turn out to be mostly pulp. Juice content and tartness vary quite wildly. You have to rely on experience to determine how much of what tartness of lemon juice will result in a bright-tasting but not overly sour sauce. Generally, I would say that you need about three tablespoons of moderately tart juice or two tablespoons of very tart lemon juice.

Use a good quality unsalted sweet creamery butter. I know of no situation in which pre-salted butter is a good idea.

preparation notes

Start some water boiling in a double boiler. Squeeze the juice of one lemon into a ramekin. Add salt and pepper and place the ramekin in the double boiler to pre-warm it while you continue preparations.

Melt one stick of butter in a Pyrex bowl, ramekin, or measuring cup by microwaving it on full power for one minute.

Separate the yolks. Remove and discard as much of the chalaza (the white connective tissue that occasionally forms one or two curd-like white nodules on the outside of the yolk) as possible.

Place a folded dish towel on the counter next to the stove. In order to keep the egg yolks from getting too hot over the boiling water, you're going to switch the top pan back and forth between the double boiler and the towel. This technique makes the process much simpler (no need to drizzle in the butter) and virtually foolproof. It goes something like this:

Remove the top pan from the double boiler to the dish towel and in that top pan combine the yolks and lemon juice. Whisk the yolks briskly for about twenty seconds and then add in one third of the butter. Return the top pan to the double boiler and continue whisking the yolks briskly for about twenty seconds. Remove the top pan to the towel again and, pour in the rest of the butter, and continue whisking briskly for another twenty seconds.

(At any time in this process, if you need to stop be sure that the last place you whisked the sauce was on the dish towel. That will ensure that no part of the sauce gets too hot and curdles while you're not whisking it.)

From this point on, alternate the top pan between the double boiler and the dish towel in twenty-second periods of whisking. The sauce will gradually begin to thicken until a whisk trailed through the sauce leaves a distinct track that refills very slowly. You want a consistency that's just barely thin enough to flow. If your Hollandaise thickens but never seems to thicken as much as you like, leave the top pan sitting on the dish towel for about five minutes and then whisk it again. You'll find that it's thickened a bit in the intervening time. Hollandaise will keep for quite a while at 145F (if you can hold it at that temperature) but you'll need to keep whisking it every few minutes to keep it from skinning over.