Fresh Ginger Syrup

Before you start

Most ginger syrups are made by simmering sliced root in sugar water, which gives a mellow, slightly cooked flavor. This version blends raw ginger with water first, presses out the juice-rich liquid, and only warms it long enough to dissolve the sugar. Heat drives off the sharp, peppery compounds that make ginger exciting, so keeping the liquid below a simmer preserves the bite you want in a Moscow mule or a Penicillin.

The main decision is strength. Young, smooth-skinned ginger is juicy and milder; older, fibrous knobs are hotter and yield less liquid. Weigh the strained ginger liquid and match it with the same weight of sugar so the syrup lands at a predictable 1:1. Expect some starch to settle at the bottom of the bottle; that is normal and you can shake it back in or pour carefully to leave it behind.

Ingredients

• 150 g (about a 15 cm / 6 in piece) fresh ginger — washed; peeling is optional
• 240 ml (1 cup) water
• about 250 g (1¼ cups) granulated sugar — match the weight of the strained ginger liquid
• 1 pinch fine salt — optional; it rounds out the heat

Method

1. Scrub the ginger and trim any dry or moldy ends. Leave the skin on if it is thin and clean; it carries flavor and saves time. Cut the root into coins about 1 cm (½ in) thick so the blender can catch them.
2. Blend the ginger with the water on high for 45 to 60 seconds, until the mixture looks like a smooth, pale pulp with no visible chunks.
3. Line a fine-mesh strainer with cheesecloth and set it over a bowl. Pour in the pulp, then gather the cloth and squeeze hard until the solids feel dry and crumbly. You should collect roughly 250 ml of cloudy liquid.
4. Set a saucepan on the scale, tare it, and pour in the ginger liquid. Note the weight, then add the same weight of sugar plus the pinch of salt.
5. Warm over low heat, stirring, just until the sugar dissolves and the liquid turns translucent, about 3 to 5 minutes. Keep it below 70°C (160°F); small bubbles at the edge mean it is getting too hot.
6. Take the pan off the heat and let the syrup cool to room temperature, about 30 minutes. Taste a drop: it should sting the back of your throat a little.
7. Funnel the syrup into a clean bottle, label it with the date and refrigerate. Shake before each use to redistribute the settled ginger starch.

Tips for success

• For an even hotter syrup, add 1 to 2 grams of thinly sliced fresh ginger to the warm syrup and let it steep 15 minutes before straining.
• Freeze the leftover pulp in a zip-top bag and use it in tea, stir-fries or marinades rather than throwing it away.
• Weighing beats measuring by cup here. Ginger liquid varies batch to batch, and a 1:1 weight ratio keeps your cocktails consistent.

Substitutions

Granulated sugar

Demerara or light brown sugar adds a molasses note that suits dark rum and whiskey drinks. Honey works for a Penicillin-style syrup, but it masks some ginger heat and thickens the texture.

Blender method

No blender? Grate the ginger finely on a microplane, mix with the water, rest 10 minutes and squeeze through cloth. Yield is a little lower and the work takes longer.

Fresh ginger

Ground dried ginger does not substitute well; it tastes dusty and leaves sediment. Use fresh root or make a different syrup.

Variations

Ginger-lemongrass

Blend two chopped lemongrass stalks along with the ginger. Good in vodka sodas and iced tea.

Spiced ginger

Steep 1 cinnamon stick and 4 allspice berries in the warm syrup for 20 minutes, then strain.

Troubleshooting

The syrup tastes mild and sweet, not spicy

It was heated too long or too hot, or the ginger was very young. Next time, dissolve the sugar off a simmer and use older, firmer roots.

A thick white layer forms at the bottom

That is ginger starch settling out. Shake it back in for a cloudier, fuller syrup, or decant the clear syrup off the top.

Strained liquid is gritty

The cloth was too coarse or tore. Strain again through a doubled layer of cheesecloth or a coffee filter.

Storage

Refrigerate in a clean, sealed bottle and use within about 2 weeks. Fresh ginger liquid is less stable than plain simple syrup. Discard it if it turns cloudy in a new way, smells fermented, fizzes or shows any mold.