Dehydrated Citrus Wheels

Before you start

A dried citrus wheel is a garnish that lasts for weeks, floats neatly on a drink and still releases a little aroma when it touches the liquid. The whole job is removing water slowly enough that the fruit dries flat and translucent instead of browning at the edges or staying sticky in the center.

Three choices decide the result. Slice evenly at about 3 mm so every wheel finishes at the same time. Keep the heat low, around 90 to 95°C (195 to 200°F) in an oven or 57°C (135°F) in a dehydrator, so the sugars in the fruit do not caramelize. And dry them all the way: a wheel that still bends will mold in the jar.

Ingredients

• 2 medium navel oranges — firm, heavy fruit with smooth skin
• 2 lemons — thin-skinned if possible
• 1 to 2 limes — limes dry fastest and brown easily, so check them early
• 1 tbsp (12 g) granulated sugar — optional, for a light glaze on orange wheels

Method

1. Heat the oven to 90 to 95°C (195 to 200°F). If your oven runs hot or cannot hold a low setting, use a dehydrator at 57°C (135°F) instead.
2. Scrub the fruit under running water and dry it. Trim off the two ends, then cut each fruit crosswise into wheels about 3 mm (1/8 inch) thick. Even thickness matters more than the exact number.
3. Lay the wheels on paper towels, cover with more towels and press gently to blot surface juice. Less juice on the surface means less sticky caramel later.
4. Arrange the wheels in one layer on wire racks set over baking sheets, so air reaches both sides. If you have no racks, use parchment and plan to flip them every hour.
5. If you want a faint gloss on orange wheels, sprinkle them very lightly with the sugar. Leave lemons and limes plain; sugar makes their thin flesh brown quickly.
6. Dry in the oven for 3 to 5 hours, rotating the trays every hour. Pull limes as soon as they are dry, often after 2½ to 3 hours, before they darken.
7. Test a wheel by letting it cool for 5 minutes. It is done when the flesh is dry to the touch, the segments look like stained glass and the wheel snaps or bends stiffly without any tacky spots.
8. Cool all the wheels completely on the racks, about 1 hour, before you put them in a jar. Warm wheels give off moisture that softens the whole batch.

Tips for success

• Hold a wheel up to a window. Even color across the flesh means even drying; a dark rim with a wet center means the oven is too hot.
• Blood oranges and pink grapefruit make dramatic wheels, but grapefruit is thick, so slice it slightly thinner and expect a longer drying time.
• Put a food-safe silica gel packet or a few grains of uncooked rice in a small cloth bag in the jar if your kitchen is humid.

Substitutions

Oven

An air fryer with a dehydrate mode works in small batches at its lowest setting, but the fan can flip thin wheels; weigh them down with a rack.

Oranges

Kumquats cut into thin coins dry quickly and make small garnishes for coupes. They are seedy, so pick the seeds out before drying.

Sugar glaze

Skip it entirely for a drier, more matte wheel that stores longer. A dusting of cinnamon sugar suits hot toddies and mulled cider.

Variations

Spiced wheels

Before drying, dust orange wheels with a mix of sugar, ground cinnamon and a pinch of clove for mulled wine and cider.

Half-moon garnish

Cut dried wheels in half with scissors and cut a slit to the center so they perch on the rim of a rocks glass.

Troubleshooting

The edges turned brown and bitter

The heat was too high or the wheels were too thin. Lower the oven, prop the door open slightly with a wooden spoon and pull thin slices earlier.

The wheels are still sticky after cooling

They need more time. Return them to the oven for 30 to 60 minutes and test again; stickiness usually means leftover juice and sugar near the center.

Spots of fuzz appeared in the jar

That is mold, caused by wheels that were not fully dry or a jar sealed while they were warm. Discard the whole jar and dry the next batch longer.

Storage

Keep fully dried wheels in an airtight jar in a cool, dark cupboard. They generally hold their color and snap for a few weeks and stay usable for a couple of months; the color fades over time. Throw them out if they turn soft, smell musty or show any mold.