How to Make Spiced Rum in an Oak Barrel
· @Pete Molloy
Homemade spiced rum takes about three weeks from start to finish, and a Heritage Glasses oak ageing barrel makes it taste like something you’d pay twice as much for. The barrel adds vanilla, caramel and toasted oak; the spices add warmth and a hint of Christmas. Start by mid-October and it will be ready to drink, or give, by Christmas.
This recipe starts with a bottle of shop-bought rum. You’re not making rum from scratch: you’re ageing and infusing it, which is simple, legal and hard to get wrong.
Which size should I choose? For your first batch of spiced rum, the 1.5 or 3 litre barrel is the sweet spot: big enough to fill several gift bottles, small enough to age quickly. Choose the 1 litre if you want to experiment, or the 5 litre if you’re making rum for the whole family. Barrels start from €85.
Shop Heritage Glasses oak ageing barrels
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What you need
An oak ageing barrel, cured and ready to use. If yours is new, cure it first: see our oak barrel care guide. Don’t have one yet? Heritage Glasses oak ageing barrels come in 1, 1.5, 3 and 5 litre sizes.
Which size should I choose? For your first batch of spiced rum, the 1.5 or 3 litre barrel is the sweet spot: big enough to fill several gift bottles, small enough to age quickly. Choose the 1 litre if you want to experiment, or the 5 litre if you’re making rum for the whole family. Barrels start from €85.
Rum. Choose a mid-priced golden or white rum at 37.5 to 40% ABV. It doesn’t need to be expensive, as the barrel and spices do the heavy lifting. Avoid rum that’s already spiced or sweetened; you want a clean base.
Whole spices. Use whole spices, not ground: ground spices make the rum cloudy and are hard to strain out. Amounts below are a starting point; adjust to taste next time.
| Spice | 1 litre | 1.5 litre | 3 litre | 5 litre |
|---|---|---|---|---|
| Vanilla pod, split lengthways | 1 | 1 | 2 | 3 |
| Cinnamon stick | 1 | 1 | 2 | 3 |
| Orange peel strips (no white pith) | 3 | 4 | 8 | 12 |
| Cloves | 3 | 4 | 8 | 12 |
| Allspice berries | 3 | 4 | 8 | 12 |
| Star anise (optional) | 1 | 1 | 2 | 3 |
| Fresh ginger slices (optional) | 2 | 3 | 5 | 8 |
| Brown sugar or honey (optional) | 1 tbsp | 1½ tbsp | 3 tbsp | 5 tbsp |
You’ll also need a large glass jar with a lid, a fine strainer or coffee filter, a funnel, and glass bottles for the finished rum.
How to make spiced rum, step by step
This method ages the rum in the barrel first, then adds the spices in a jar. It keeps your barrel clean of spice flavours, so you can still use it for whisky or plain rum afterwards.
- Cure your barrel. A new barrel must be soaked in water until it stops leaking, which takes a few days and up to a week. Our care guide walks you through it.
- Fill the barrel with rum. Empty the curing water, then fill the barrel to the top using a funnel and push the bung in firmly.
- Age for 1 to 3 weeks. Small barrels work fast. Taste from the spigot after one week, then every few days. Stop when the rum tastes smoother, with clear vanilla and caramel notes. A 1 litre barrel may only need 7 to 10 days; a 5 litre barrel may need 3 weeks or more.
- Decant into a jar and add the spices. Empty the barrel into a large glass jar. Add the vanilla, cinnamon, orange peel, cloves, allspice and any optional spices from the table.
- Infuse for 2 to 5 days. Keep the jar somewhere cool and dark and give it a gentle shake once a day. Taste daily. If the cloves or star anise start to dominate, fish them out early.
- Strain and sweeten. Pour the rum through a fine strainer or coffee filter. If you like it sweeter, stir in the brown sugar or honey a little at a time until it dissolves.
- Bottle and rest. Funnel into clean glass bottles and leave for about a week. The flavours settle and blend, and the rum tastes noticeably smoother.
Got everything except the barrel? Choose your Heritage Glasses oak ageing barrel, handmade from American white oak with a medium char, ready to cure and fill.
Refill your barrel with water and storage tablets, or with your next batch of rum, straight away. Never leave it empty, or the wood will dry out.
Spicing in the barrel: the all-in-one method
If you’d rather keep a barrel just for spiced rum, you can put the spices straight into the barrel with the rum. The flavours blend more deeply, but the barrel will taste of spice for good, so don’t use it for whisky afterwards.
Push the spices in through the bunghole, fill with rum and taste every 2 to 3 days. With spices and oak working together, it’s usually ready in 1 to 2 weeks. Drain through a strainer when it tastes right. Later batches in the same barrel pick up spice from the wood, so you can use fewer spices each time.
Many of our customers keep two barrels: one for spiced rum and one for whisky or plain rum. Add a second barrel.
Tips for the best spiced rum
- Taste more often than you think you need to. Small barrels and whole spices both work fast, and it’s much easier to add time than take it away.
- Go easy on cloves. They’re the strongest spice here and can turn a batch bitter within days.
- Peel oranges thinly. The white pith underneath adds bitterness, so use a vegetable peeler and take just the orange layer.
- Keep notes. Write down the rum, spice amounts and days for each batch, so you can repeat your favourite.
- Sweeten last. Sugar is easy to add and impossible to remove, so taste before you sweeten.
- Serve it in the right glass. A tulip-shaped whisky glass works just as well for rum: it concentrates the vanilla and spice aromas, so you get more from every sip. Browse our whisky glasses.
Ready for Christmas: when to start
Working back from Christmas, here’s a comfortable timeline:
- By mid-October: order your barrel and start curing it. Curing takes up to a week, so the earlier you start, the longer your rum can age.
- Late October: fill with rum and start ageing.
- Early to mid-December: add the spices, infuse, strain and bottle.
- Christmas week: rested, mellow and ready to pour.
Homemade spiced rum makes a lovely gift. Pour it into small swing-top bottles, add a handwritten label with the date and spices, and tie on a cinnamon stick.
Looking for a gift instead? An oak ageing barrel makes a memorable present for any whisky or rum lover. Pair it with a bottle of their favourite rum and a copy of this recipe, and they’ll be making their own spiced rum for years. Shop oak ageing barrels as a gift.
Ready to start? Browse the Heritage Glasses range of oak ageing barrels and read the care guide before you begin. Please enjoy responsibly.
