Today I came across my earliest baking memory. I was helping my mother bake a cake for her progressive dinner – hers being the last stop, dessert, in the progression. She had come across a recipe for one of Monet’s favorite cakes, a caked called vert vert because the batter is made with pistachios and the frosting dyed with spinach. The directions indicated that the batter was to be mixed in a pan over a low flame – a baking method I have never encountered! “Over a low flame, mix four eggs with the sugar until it has doubled in volume. Slowly add the flour, kirsch and pistachios. Pour into pan and bake for 30 minutes.”
Of course putting eggs over a flame has the potential to result in scrambled eggs. And it almost did. While whisking in the sugar I noticed thin white threads beginning to form in the pan. “Mom! Help!” I hollered, “add the flour! The eggs are scrambling!” I didn’t have time to notice whether or not the egg-sugar mixture had doubled in volume, and I’m pretty sure it didn’t, because our batter did not appear voluminous enough to fill a cake pan even after we added the flour and pistachios and kirsch.
Hence, baking powder. “I know this is cheating,” mom said in a near whisper, “But don’t you think we should add just a little ?” Neither of us wanted a repeat-experience of my fifteenth birthday cake, shaped in a heart, sans baking powder, as dense as granite.
“A teaspoon will do it.” my mom told me, and as I scooped a teaspoon of the white powder out of its jar I autimatically poured it into the palm of my left hand and began using the back of the teaspoon to crush the clumps. Then I opened my hand a little and tipped my palm like a plate, using the spoon to scrape the powder from the surface of my hand.
Suddenly the sensation of the spoon scraping against my palm made my mind leap backwards twenty years. I don’t know if I was four or five, but it was around then; we were baking cookies, and my mother had me hold up my hand like a bowl, then poured in the teaspoon of powder, crushed it with the spoon and then had me open my tiny palm up so she could scrape the soft stuff into the flour. It was the first technique I ever learned, and to be honest I’ve been doing it ever since without thinking why – except that “lumps are bad” and biting into a lump of anything in a baked good is gross (unless it’s a lump of chocolate or fruit.)
Baking powder is a chemical leavening agent and needs to be distributed evenly throughout the other dry ingredients so that it’s “action” (creating carbon dioxide gas) is fully effective in making the cookies, biscuits or cake rise. Other leavening agents include yeast, beer, and yogurt (all biological) as well as baking soda & cream of tarter – the chemicals that when combined create baking powder. Mechanical leavening involves whipping eggwhites or creaming butter & sugar together so that tiny air bubbles form (“Beat until fluffy” as recipes say) but Monet’s cake didn’t seem to involve any of the above mentioned leaveners, neither biological, chemical nor mechanical. Perhaps the whipping of the eggs and sugar over a low flame was some kind of mechanical method of leavening, but it didn’t really work. Did Monet’s cake recipe pre-date the advent of chemical leaveners – the method most often used in baking cakes?
Technically Monet was alive (1840 – 1926) during the time when chemical leaveners were available. Certainly sodium bicarbonate or baking soda was used throughout the early 19th century, but Alfred Bird (1811 – 1878) is the man responsible for inventing our modern double acting baking powder. The double action involves two acid salts that create separate reactions – the first when the ingredients are exposed to liquid, then to heat. Alfred Bird first came up with a recipe for eggless custard, as his wife had an egg as well as a yeast allergy, so it would follow that his next invention was a leavening agent – one so common now we take it for granted. The mixture was later (and perhaps more profitably) developed by Eben Norton Horsford (1818 – 1893), who named his patented version after Count Rumford – one of the discoverers of the Law of Conservation of Energy - a noted scientist hailing from Wobern, Mass. Rumford Baking powder is probably what you have on the shelf in your pantry: a popular product as it does not contain aluminium (a common acid salt used in chemical leaveners and detrimental to health.) As the Rumford product description reads:
“This property makes it somewhat faster acting than typical double-acting baking powders. You’ll still see a boost of leavening in the oven, but most of the reaction occurs in the mixing bowl. While this makes a more delicate crumb structure in the finished product, do not dawdle.”
So even though baking powder did exist during Monet’s lifetime, either it wasn’t easily available or it wasn’t the leavener of choice. Perhaps what made Monet’s cake rise was actually just… dawdling. But for us there wasn’t time to summon the artist within and figure how to whip sugar into eggs over a hot stove and make a fluffy batter. Thank goodness for the chemicals on the shelf – not only did they make the cake rise, but they brought me back to baking cookies with mom circa 1987.
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