How to Make Mint Jelly in Canada (Sunday-Roast-Lamb Classic)

Mint jelly is the Sunday roast lamb classic. Every British and Canadian cookbook from the last hundred years includes it as a standard preserve. The bright herbaceous-sweet jelly cuts through rich lamb fat in a way that nothing else does — and home-made mint jelly is dramatically better than the bright-green supermarket version.

This guide covers the Bernardin water-bath method. The recipe uses commercial pectin (mint has no natural pectin to set on its own).

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What you need

For 6-7 × 125 mL jars:

• 2 cups fresh mint leaves, lightly packed (spearmint or peppermint; about 60-80 g)
• 3 cups water
• 1 cup white vinegar (or apple cider vinegar, 5% acidity)
• 4 cups granulated sugar
• 1 pouch Certo liquid pectin (one 85 mL pouch)
• 1-2 drops green food colouring (optional — for the bright supermarket look)
• Optional: ½ tsp butter to reduce foam
• Bernardin 125 mL regular-mouth jars (the traditional mint-jelly size) OR 250 mL, fresh SNAP lids, bands
• Cheesecloth or jelly bag for straining
• Standard canning kit — jar lifter, headspace tool, funnel, water-bath canner, ladle, large heavy pot

Pick your mint

• Spearmint (Mentha spicata) — the standard culinary mint; broad leaves; mild, sweet flavour
• Peppermint (Mentha × piperita) — narrower leaves; more menthol-intense
• Apple mint (Mentha suaveolens) — fuzzy leaves; mild apple-mint flavour
• Chocolate mint (Mentha × piperita ‘Chocolate’) — peppermint with chocolate undertones; novelty
• Mojito mint (Mentha × villosa) — bright, slightly citrusy

Pick fresh — mint loses essential oils within hours of cutting. Cut in the morning after dew evaporates; use within 4-6 hours for best flavour.

Most Canadian gardens have surplus mint — it’s an aggressive perennial in zones 3+. If you grow it, you have more than you can use.

Method

Step 1: Prep mint

1. Wash mint leaves gently in cool water.
2. Pat dry with clean tea towels.
3. Strip leaves from stems (stems are bitter when boiled).
4. Lightly crush or chop the leaves — releases essential oils. Don’t pulverize.
5. Measure — should be about 2 cups loosely packed.

Step 2: Make the mint infusion

1. In a large pot, combine chopped mint + 3 cups water + 1 cup vinegar.
2. Bring to a boil over medium-high heat.
3. Reduce heat; simmer covered for 10 minutes. The water and vinegar extract mint essential oils.
4. Remove from heat. Let steep another 10 minutes for stronger flavour.

Step 3: Strain

1. Set up a cheesecloth-lined sieve over a clean bowl.
2. Pour the mint infusion through. Press mint leaves gently with a spoon to extract more liquid (don’t squeeze hard — that releases bitterness).
3. Measure the strained infusion — should be about 3 cups.
4. If you have slightly less, top up with water + a splash of vinegar to maintain the 3:1 water-to-vinegar ratio.

Step 4: Combine and boil

1. Pour strained mint infusion into a heavy pot.
2. Add 4 cups sugar and optional ½ tsp butter.
3. Stir over medium heat until sugar dissolves.
4. Bring to a full rolling boil — one that can’t be stirred down.

Step 5: Add pectin

1. Stir in the entire pouch of Certo liquid pectin.
2. Return to a full rolling boil.
3. Boil exactly 1 minute more.
4. Remove from heat.
5. Optional: stir in 1-2 drops of green food colouring at this stage if you want the bright commercial-mint-jelly look.
6. Skim foam.

Step 6: Jar and process

1. Have your water-bath canner simmering with enough water to cover jars by 2.5 cm.
2. Have hot jars ready, fresh SNAP lids on the counter.
3. Ladle hot jelly into hot jars. Leave 6 mm (¼ inch) headspace.
4. Run the headspace tool down each jar.
5. Wipe rims, apply lids fingertip-tight.
6. Process 10 minutes at sea level (verify with Bernardin edition).
7. Adjust for altitude per our altitude article.
8. Cool 12-24 hours undisturbed. Don’t move jars — gelling happens during cooling.
9. Check seals. Label, store.

If a jar doesn’t seal: the 24-hour rule applies.

Wait at least 1 week for full set

Like pepper jelly, mint jelly takes up to 1 week to reach full set at room temperature. Don’t panic if it seems loose after 24 hours.

Storage

• Cool, dark, dry place at room temperature
• Best quality 18-24 months — herbal jellies store exceptionally well
• After opening: refrigerate, use within 2-3 months
• Colour fades over time; cosmetic only

Variations

Apple-mint jelly (apple base for body)

Use 2 cups of fresh-pressed apple juice (or home-made apple jelly base) plus 1 cup mint infusion. Reduces vinegar to ¼ cup. The apple adds body and natural pectin (less commercial pectin needed). Slightly less assertive mint flavour but more refined.

Mint and lemon jelly

Add 2 tbsp grated lemon zest to the mint infusion. Bright, summery. Pairs with grilled fish or chicken.

Mint and lime jelly

Same as lemon, with lime zest. Mojito-inspired. Great with grilled pork.

Spicy mint jelly (sweet-hot)

Add 1-2 finely chopped jalapeños to the mint infusion. Strain out for clearer jelly or leave for visual texture. Surprising and excellent on grilled meats.

Rosemary-mint jelly

Add 1 sprig fresh rosemary to the infusion. Different herbal note; pairs with lamb especially well.

Multi-herb jelly

Combine mint + basil + thyme in the infusion. Fresh herb medley.

How to use mint jelly

The canonical pairing

Roast lamb — leg, rack, chops. Serve a small spoonful on each plate. The traditional British/Canadian Sunday-roast accompaniment.

Other uses

• Lamb burgers — top with a small dollop
• Cheese pairing — sharp cheddar, brie, goat cheese, blue cheese, especially aged Canadian cheddar
• Glaze for lamb chops — brush in the last 5 minutes of grilling/broiling
• In a vinaigrette — whisk with olive oil and balsamic for spring salads
• On scones or biscuits — with butter
• As a fruit/cheese plate condiment
• In a cocktail — shake 1 tsp into a gin-and-tonic for a sophisticated summer drink
• Glaze for grilled chicken — brush in last minutes of grilling
• As a sandwich condiment with lamb cold cuts
• Holiday gift — small jars with handwritten labels

Common problems

• Jelly didn’t set. Either commercial pectin was skipped (won’t set), or Certo timing was off (exactly 1 minute boil). Reboil with another ½ pouch of Certo and another 1-minute boil.
• Jelly too firm/gummy. Over-cooked. Warm with 1 tsp water to loosen.
• Mint flavour too weak. Use more mint (3 cups instead of 2) OR steep longer (20 minutes instead of 10). Also, garden mint is dramatically stronger than supermarket mint.
• Bitter aftertaste. Squeezed the cheesecloth too aggressively, OR included mint stems. Use leaves only; press cheesecloth gently.
• Cloudy jelly. Boiled too vigorously, or strained inadequately. Cosmetic; safe.
• Colour faded. Light exposure in storage. Store dark.
• Jar didn’t seal. The 24-hour rule.

Yield expectations

• 2 cups fresh mint + sugar + pectin → 6-7 × 125 mL jars OR 3-4 × 250 mL jars
• A typical Canadian household makes 6-12 × 125 mL jars per year — most given as gifts

Why home-made mint jelly is worth it

• Better flavour than commercial — fresh garden mint vs synthetic extract
• No artificial green colouring — natural pale-green or skip the dye
• Sunday-lamb tradition — the canonical pairing
• Uses garden surplus — mint grows invasively; jelly is the productive use
• Excellent gift — distinctive flavour, beautiful small jars
• Long shelf life — 2 years sealed

Mint preservation alternatives

Mint can also be preserved by:

• Drying — see how to dry herbs; use for tea, less ideal for jelly
• Freezing in ice cubes with water — for cocktails (mojitos)
• Freezing in oil cubes — see how to freeze herbs

Most Canadian households use mint jelly as the primary preservation method for fresh-mint flavour.

Next steps

• How to make apple jelly in Canada — same jelly-bag technique
• How to make Concord grape jelly in Canada — companion fall jelly
• How to make hot pepper jelly in Canada — savoury jelly category
• How to dry herbs in Canada — alternative mint preservation
• How to freeze herbs in Canada — alternative for tender herbs
• Why didn’t my jam set — pectin troubleshooting
• Canning altitude adjustments — required reading
• Water-bath canning pillar — broader method