Family recipes
Decoding grandma's recipe card: oleo, a scant cup and a moderate oven
Oleo, a scant cup, butter the size of an egg, a moderate oven: what the words on an old recipe card actually mean, and how to cook from one today.
The card is soft at the corners, with a butter thumbprint right over the word that matters. It says "1 scant cup sugar, butter the size of an egg, bake in a moderate oven until done." That's the whole recipe.
You've cooked for years. You own measuring cups in three different materials. And you have no idea what this card wants from you.
Good news: it isn't a riddle. It's a dialect. Learn a dozen words and most old cards read like plain instructions from someone who assumed you'd been standing next to them in the kitchen. Usually, you were supposed to have been.
Why old recipes read like riddles
Recipe cards were never written for strangers. They were notes between people who already cooked the same way, in the same kind of kitchen, with the same kind of oven. "A moderate oven" needed no number, because everyone knew what moderate felt like.
Standard measuring took a while to catch on. Fannie Farmer's Boston Cooking-School Cook Book, first published in 1896, became famous for spelling it out. "A cupful is measured level," says the 1910 edition, which explains how to level it with a knife, "care being taken not to shake the cup." Your great-grandmother may have owned that book. Her mother may have measured with whatever cup was nearest.
So the card is accurate. It's just accurate in a language that assumed context. Here's the phrasebook.
Measures: scant, heaping, teacups and eggs of butter
Scant means a little less than the amount named. A scant cup is a cup that's not quite full. There's no official number for how much less. A tablespoon or so short is the usual reading, and a fine place to start.
Heaping is the opposite: as much as will stay on the spoon without sliding off. A heaping teaspoon of baking soda is a real difference from a level one, so for a cake, go modestly rounded rather than mountainous the first time.
A teacup is where sources start arguing. Wikipedia's table of cooking measures puts a British teacup at 5 imperial fluid ounces, a little over half a US cup. Plenty of vintage-recipe guides say closer to ¾ cup. The honest answer is that a teacup was whatever teacup lived in that kitchen. If the card measures everything in teacups, the good news is that ratios survive: use the same cup for every ingredient and you'll get her proportions.
A wineglass is smaller than you'd think. The same table gives 2 fluid ounces, or ¼ cup. Think sherry glass, not the big bowl you use on a Friday night.
Butter the size of an egg has no official conversion, but you can reason it out. North Dakota State University Extension counts one whole egg, out of the shell, as 3 tablespoons. So an egg-sized lump of butter lands around 3 to 4 tablespoons, roughly ¼ cup or half a stick. Butter the size of a walnut is much smaller. Start with a tablespoon and trust your eyes.
Pinch, dash and smidgen are where everyone disagrees. Mini measuring-spoon sets often label a dash ⅛ teaspoon, a pinch 1/16 and a smidgen 1/32. But Wikipedia's entry on the pinch notes that sources define it variously as 1/16, ⅛ or 1/24 teaspoon, and that "there is no generally accepted standard." For salt and spice, that's fine. A pinch is what fits between your thumb and two fingers. Grandma's fingers may simply have been bigger.
Oven words: slow, moderate, hot and quick
Before ovens had dials, cooks judged heat by feel. Wikipedia's article on oven temperatures describes counting how many seconds you could hold your hand inside, or timing how long a sheet of white paper took to turn golden brown. The words outlived the methods by decades.
Here's the most common translation:
| The card says | °F | °C |
|---|---|---|
| Very slow oven | 250 | 120 |
| Slow oven | 300–325 | 150–160 |
| Moderate oven | 350–375 | 180–190 |
| Moderately hot | 375–400 | 190–200 |
| Hot oven | 400–450 | 200–230 |
| Very hot, fast or quick oven | 450–500 | 230–260 |
Sources don't agree exactly. A Tasting Table guide stretches "moderate" from 325 to 400°F (160 to 200°C). So aim for the middle, 350°F (180°C) for "moderate", and start checking early. For a cake, a toothpick and your nose beat the clock.
"Quick oven" trips people up because it sounds like a cooking time. It isn't. It means hot. Biscuits and popovers live there.
Ingredients that changed names or sizes
Oleo is margarine. The full name was oleomargarine, and the stuff was invented in France in 1869, according to Wikipedia's history of margarine. For decades, dairy states banned yellow margarine, so it was sold white with a packet of dye you kneaded in yourself. Wisconsin held out until 1967.
The modern catch: a lot of tubs labeled "spread" aren't margarine at all. Under federal rules, margarine must be at least 80 percent fat. Spreads can be far less, and the extra water can make cookies run and pastry go limp. When an old card says oleo, use butter or stick margarine.
Sweet milk and sour milk. "Sweet milk" just meant fresh milk. "Sour milk" was milk that had soured on its own, which raw milk did. Pasteurized milk doesn't sour gracefully; it just goes bad, so leave the forgotten carton out of this. NDSU's substitution chart has the fix: put 1 tablespoon of lemon juice or vinegar in a cup measure, top up with milk to the 1-cup line, and let it stand 5 to 10 minutes. Buttermilk works too.
A cake of yeast was fresh compressed yeast, sold in small foil-wrapped blocks. Fleischmann's says one 0.6-ounce cake equals one packet of dry yeast, about 2¼ teaspoons. NDSU's chart pairs the same cake with a full tablespoon of active dry. That's the kind of small disagreement old recipes are full of. Start with the packet; a slow rise forgives a lot.
A square of chocolate is 1 ounce of unsweetened baking chocolate, per NDSU. Out of squares? The same chart swaps in 3 tablespoons of cocoa plus 1 tablespoon of butter for each one.
Can numbers are the sneakiest. A recipe asking for "a No. 2 can" of tomatoes doesn't mean the small one. Nebraska Extension's can-size table puts a No. 2 at about 2½ cups (20 ounces), a No. 303 at 2 cups, and a No. 2½ at 3½ cups. Today's shelf sizes don't line up neatly with any of them. It's a cousin of the trouble with recipes that call for "one box" of something that has since shrunk.
Instructions that assume you already know
Some lines on the card aren't measurements at all. They're trust.
"Bake until done." For cakes and quick breads, done means a toothpick comes out clean, the top springs back when pressed, and the edges pull away from the pan. Start checking ten minutes before you think you should. For anything with meat in it, "done" is a number on a thermometer, and the USDA keeps the chart. Don't eyeball a casserole.
"Beat well." This was written by someone with a wooden spoon and serious forearms. With a stand mixer, "beat well" can become "beat far too much", especially once the flour is in. Mix until smooth, then stop.
"Flour to make a soft dough." This line tells you the card is a memory aid, not a recipe. Add flour a little at a time. Stop when the dough stops sticking to your hands. Write down how much you used. That number is the recipe now.
"The usual." Nobody can help you here except whoever wrote it. If they're still around to ask, there's a list of questions worth asking about family recipes while you can.
Translating a card without losing it
The tempting move is to type the card up clean, with modern measures, and put the original in a drawer. Do half of that.
- Photograph the card first, both sides, in daylight. The handwriting is part of the inheritance. So is the butter stain.
- Type it out exactly as written, oleo and all. That's the record.
- Underneath, write your translation: "scant cup = 1 cup minus 1 tbsp", "moderate oven = 350°F (180°C)", "No. 2 can = 20 oz".
- After you cook it, add a note: what you actually did, how long it really took in your oven, and whether it tasted the way you remember.
That's three layers: her words, your translation, your notes. The next person to make it gets all three and never has to start from the riddle.
Tonight
Pull out one card. Just one. Photograph it, then pencil the modern measure next to each mystery word using the lists above. Make it this weekend and write down how it went. If "moderate oven" turns out to mean 340°F in your kitchen, that isn't a mistake. That's the next line on the card.