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The regional table / Vermont

Sugar on Snow

Boiling point is the whole trick. Syrup at legal density boils about seven degrees above water; sugar boils twenty-six above; wax lives in the narrow band between them, and if you miss it you get either a puddle or a brick.

Bulletin No. 21 of the Vermont Department of Agriculture, March 1915, How Vermont Maple Sugar Is Made, does not hedge about this one. Sugar on snow, it says, is one of the most delicious confections known to mortals; the syrup should be boiled until it will wax, which is usually a little in excess of 230 degrees, and then it should be poured upon snow or ice. In the early days of sugar making, when germs had no terrors for our ancestors, this waxed sugar was spread upon a clean snowbank; now pans of snow or cracked ice are prepared and the brittle sheets of waxed sugar are eaten with sour pickles and plain or unsweetened doughnuts as a relish. The person who never has eaten waxed maple sugar, the bulletin finishes, has missed one of the gastronomic treats of a lifetime. The pickles are not a modern gimmick and never were.

The physics is in the federal literature. Farmers' Bulletin 1366, Production of Maple Sirup and Sugar, 1924, defines the confection exactly: maple wax is prepared by boiling sap sirup to a density nearly equal to that of hard sugar, but without stirring, and then pouring the product over snow or ice to secure an immediate cooling, thereby preventing crystallization of the sugar. Stirring makes sugar; not stirring and chilling instantly makes wax. The same bulletin explains why there is a ceiling at all — pure water will hold in solution 66 per cent of pure sugar at ordinary temperatures, so once you evaporate past that the solution is holding all the sugar it can without depositing some as crystals. Everything above that point is a race between crystallisation and cold, and the snow wins it.

Why this version works

Do not stir it, and do not scrape the pan. Bulletin 1366 is explicit that the difference between wax and sugar is the stirring. Agitation gives dissolved sucrose the nucleation sites it needs; every crystal you introduce recruits more. Pour from the pan in one steady motion and leave whatever clings to the sides where it is.

The snow has to be packed and cold, not fluffy. The entire method depends on immediate cooling. Loose snow lets hot syrup sink through and melt a channel, and what comes out the bottom is a sticky puddle. Press it down hard, chill the pan first, and keep it in the freezer until the moment the syrup is ready.

Wax is the band between syrup and sugar, and it is narrow. Syrup sits at about 7 degrees above water. Bulletin 1366 puts tub sugar at 21 degrees above and medium-hard cake sugar at 26 to 28 above; USDA's Bureau of Forestry Bulletin 59 of 1905 gives 238°F for cake sugar on the early run and 242°F later in the season. Vermont's 1915 figure of a little over 230 degrees, read against water boiling at the elevation of a Vermont sugarhouse rather than at sea level, lands around 19 or 20 degrees above. Aim for 21 to 23 degrees above your own reading — about 233 to 235°F at sea level — and you are in wax, below sugar, above syrup.

The thermometer reads against your own boiling water, not against sea level. When is it Syrup?, the North American Maple Syrup Council's educational supplement to the June 2017 Maple Syrup Digest, puts the number plainly: syrup measuring 66 degrees Brix will boil at 7.1 degrees Fahrenheit higher than the boiling point of water. That relationship is what makes a thermometer useful at all, and it only holds if you know where water boils in your kitchen today. Boil a small pot of plain water first and read it. Altitude and the weather both move it, and Farmers' Bulletin 1366 gives the rough rule of a degree lost per 500 feet of elevation.

Ingredient notes

Snow: four quarts of clean packed snow in a shallow metal pan, kept in the freezer. Shaved or finely cracked ice does the job out of season and the 1915 bulletin already allows it. Do not use snow from anywhere a plough or a dog has been.

Butter: a teaspoon, dropped in as the pan comes to the boil, to keep it from climbing the sides. Bulletin 59 records the older version of the same trick, from the days of the iron kettle on a sweep pole: cold sap, cold water or milk was occasionally dashed in, or a piece of fat pork was suspended by a string just above the surface of the liquid, to prevent the sap from boiling over.

The relish: sour dill pickles and plain cake doughnuts, unsweetened. This is the documented accompaniment, not an affectation, and the reason becomes obvious after the third forkful — the acid and the salt reset your palate so you can keep going.

Maple syrup: two cups, and the grade genuinely changes the result. The United States Standards for Grades of Maple Syrup effective 2 March 2015 replaced the letter grades with four colour-and-flavour classes measured by light transmittance at 560 nanometres — Golden with Delicate Taste above 75.0 percent, Amber with Rich Taste at 50.0 to 74.9, Dark with Robust Taste at 25.0 to 49.9, and Very Dark with Strong Taste below 25.0. Dark or Very Dark, please: this is a confection of pure boiled syrup with nothing to hide behind, and Golden reduces to sweetness without character.

Step by step

  1. Find your boiling point. Boil a small pot of plain water and read it with the same thermometer you will use for the syrup. Note the number. Everything below is expressed as degrees above it.
  2. Pack the snow. Press four quarts of clean snow firm and flat in a chilled rimmed sheet pan or two shallow pans and put them back in the freezer.
  3. Boil the syrup. Pour the syrup into a tall heavy saucepan no more than a third full — it will climb to four times its depth. Add the butter. Bring to a boil over medium heat and clip the thermometer to the side, its tip below the surface and clear of the base.
  4. Take it to the wax point. Boil undisturbed, without stirring, until the thermometer reads 21 to 23 degrees above your water figure, about 233 to 235°F at sea level. From 15 degrees above, it climbs fast; stay at the pan. Total boiling time is 8 to 15 minutes depending on your burner.
  5. Test on the cold pan. Drop a teaspoonful on the snow. It should sit on the surface, firm within a couple of seconds, and lift on a fork in one elastic strand. If it soaks in, give the pan another 30 seconds. If it snaps hard and brittle, it has gone too far.
  6. Pour. Take the pan off the heat, let the bubbling subside for 20 seconds, and pour in thin ribbons back and forth across the snow. Do not scrape the pan out over the finished ribbons.
  7. Eat it straight away. Roll each ribbon onto a fork like spaghetti while it is still pliable. It stiffens as it sits and goes gritty within the hour.
Too soft, and it sinks into the snow instead of sitting on it: tip the pan back on the heat and take it up another two degrees. Too hard, and it shatters instead of winding onto the fork: add two tablespoons of water, bring it back to a boil, and stop two degrees lower this time. If it turned cloudy and grainy in the pan rather than clear, sucrose has started crystallising — something stirred it, or a crystal from the rim fell in. Add a quarter cup of water, dissolve it back down over low heat, wipe the inside of the pan above the syrup line with a wet brush, and start the climb again without touching it.

Storage and make-ahead

None. Sugar on snow does not keep — it crystallises as it stands and is coarse and sandy within an hour, which is why it has always been a thing you make in front of the people who are going to eat it.

Leftover boiled syrup can be rescued as something else: return it to the pan, add a splash of water, bring it to 26 to 28 degrees above your boiling point, stir hard as it cools below 200°F, and pour it into moulds for soft maple sugar candy.

What to serve with it

The 1915 bulletin's own three-part plate: sour pickles, plain doughnuts and the wax, taken in rotation. Strong black coffee belongs there too.

Serve it outdoors in cold weather if you possibly can. The snow lasts longer and the whole thing stops being a novelty and becomes the end of a working day.

From the recipe box / Vermont

Sugar on Snow

Maple syrup boiled past syrup to the wax point and poured in ribbons over packed snow, eaten off a fork with a sour pickle and a plain doughnut between mouthfuls.

Prep
10 min
Cook
15 min
Total
25 min
Serves
8
Calories
215 per serving

Ingredients

Scale

Instructions

  1. Boil a pot of plain water and read its temperature with your thermometer. Note the figure.
  2. Pack the snow firm in chilled rimmed pans and return them to the freezer.
  3. Put the syrup and butter in a tall heavy pan no more than a third full and bring to a boil with the thermometer clipped in.
  4. Boil without stirring to 21–23°F above your water reading, about 233–235°F at sea level.
  5. Test a teaspoonful on the cold snow: it should sit on top and lift in one strand.
  6. Off the heat, rest 20 seconds, then pour in thin ribbons across the snow without scraping the pan.
  7. Wind each ribbon onto a fork and eat at once, with a pickle and a plain doughnut between servings.

Nutrition

Fat1 g (0 g saturated)
Sodium10 mg
Protein0 g
ServingAbout ¼ cup syrup as wax, pickle and doughnut not counted
Calories215
Cholesterol1 mg
Carbohydrates53 g (52 g sugar, 0 g fiber)

Nutrition is an estimate calculated from the listed ingredients and is provided as a courtesy, not as dietary advice.

Questions readers ask

Why pickles?

Because the Vermont Department of Agriculture said so in 1915, in the same sentence in which it calls the confection one of the most delicious known to mortals: the brittle sheets of waxed sugar are eaten with sour pickles and plain or unsweetened doughnuts as a relish. A quarter cup of boiled maple syrup is a great deal of sugar in one sitting and the acid is what makes a second helping possible.

Whose tradition is this?

Maple sugar was Native technology first, and the federal record says so. Bulletin 59 of the Bureau of Forestry, 1905, reports that from time unknown the Indians tapped the maple trees, cut a diagonal gash and drove in a reed or a piece of bark, boiled the sap down in clay or bark vessels by repeatedly dropping in hot stones, and also concentrated it by letting it freeze in shallow bark vessels and throwing out the ice — a method the bulletin judged probably better than boiling. Vermont is Western Abenaki homeland; the Vermont Legislature's own findings at 1 V.S.A. § 851 record ample archaeological evidence that the Western Abenaki farmed the river floodplains of the state as far back as the 1100s A.D.

Can I use ice instead of snow?

Yes, and it is already in the documents — the 1915 bulletin says pans of snow or cracked ice are prepared, and Farmers' Bulletin 1366 says over snow or ice. Crack it fine, pack it, and keep it frozen until the last moment. Cubes leave gaps and the syrup runs through them.

How pure does the syrup have to be?

Completely, and that fight is old. The adulteration chapter of Bulletin 59 was written by H. W. Wiley, the year before the Pure Food and Drugs Act, and it estimated that at the very lowest estimate seven-eighths of the product sold to-day is a spurious article, which is only in part maple sugar, or is manufactured entirely from foreign materials. Vermont's 1915 bulletin quoted that line back at its own readers. A pancake syrup will not wax; it will foam, scorch and set like glass.