How to roast almonds at home

A raw almond is pale, firm and a little mild. Roast it for a few minutes and it turns into something else: deeper in colour, louder in aroma, and noticeably crunchier. The good news is that you need nothing more than an oven, a baking tray and a bit of patience. The less good news is that almonds go from perfect to bitter faster than you would expect, so this is a job where you stay in the kitchen.

What you need

Start with raw almonds, whole and with their skins on. Whole almonds roast more evenly than broken ones, and the skin adds a toasty, slightly tannic edge. You will also need:

• A rimmed baking tray, ideally light-coloured, since dark trays run hotter
• Baking parchment (optional, but it makes cleanup easy)
• A wooden spoon or spatula
• A cooling plate or second tray

You do not need oil. Almonds carry plenty of their own fat. For salt or spice, add it after roasting while the nuts are warm.

Roasting in the oven

The oven gives the most even result, particularly for a big batch.

1. Heat the oven to 160C (320F), or 140C (285F) fan.
2. Spread the almonds in a single layer on the tray. Crowding steams them instead of roasting them, so use two trays if needed.
3. Roast for 10 to 15 minutes, stirring or shaking the tray at the halfway point.
4. Start checking at 10 minutes. You are looking for a light golden-brown centre and a warm, sweet, nutty smell.
5. Tip the nuts onto a cool tray straight away. If they stay on the hot one, they keep cooking.

To check the colour, snap one almond in half. The inside should be tan or pale gold, not white, and certainly not dark brown. Nuts darken a little more as they cool, so pull them slightly before they look finished.

A lower, slower option

If you are roasting a large amount, 150C (300F) for 18 to 22 minutes is more forgiving. The edges of the tray can colour faster than the middle, so stir every five minutes. Slow roasting gives a more even interior and less risk of scorching.

Roasting in a pan

For a handful, a dry frying pan on the hob is quicker.

1. Warm a heavy-based pan over medium heat for a minute.
2. Add the almonds in a single layer.
3. Shake and stir almost constantly for 4 to 6 minutes.
4. Watch for tiny toasted spots on the skins and that nutty aroma, then tip them out at once.

The pan method is faster but less even, so some almonds will be darker on one side. For snacking that hardly matters. For baking, where appearance counts, use the oven.

Seasoning ideas

Roasted almonds love a light coating while they are warm and slightly tacky with their own oils.

• Salted: a fine pinch of flaky or fine salt, tossed through in a bowl.
• Smoky: a little smoked paprika plus salt. If you want the real thing without the effort, our smoked almonds are already done.
• Sweet and spiced: a pinch of cinnamon with a spoonful of sugar, stirred through hot nuts.
• Herby: finely chopped rosemary and a little black pepper.

Season in a bowl rather than on the tray, so the flavour sticks evenly.

Troubleshooting

The almonds taste bitter. They were roasted too long or too hot. Dark brown centres mean the sugars have tipped from toasty to burnt. Start a fresh batch and pull them earlier.

They are soft after cooling. Almonds crisp up as they cool, so give them 15 minutes on a cool surface before judging. If they are still chewy, they likely needed a few more minutes in the oven.

Some are dark, some are pale. Mixed sizes roast at different speeds. Next time, sort the almonds by size, or buy a consistent product such as flaked almonds for toppings, which need only 5 to 8 minutes at the same temperature and a very close eye.

Why roast at home at all?

You can certainly buy dry-roasted almonds ready to eat, and plenty of people do. Home roasting is a small pleasure for a few reasons: you choose the degree of roast, you taste the nuts at their warmest and crispest, and the kitchen smells wonderful for an hour afterwards. If you are weighing up the difference between the two states, our post on raw vs roasted nuts covers flavour and texture in more detail.

Storing your roasted almonds

Let the nuts cool completely before they go anywhere, because trapped warmth makes steam and steam makes soft nuts. Store them in an airtight jar in a cool, dark cupboard. Roasted nuts have a shorter life than raw ones, since heat and exposed surfaces speed up staleness. For the full picture, see storing nuts so they stay fresh. A batch made on Sunday should be at its best for the week ahead, and it rarely lasts that long anyway.

For some background on the nut itself, the Wikipedia entry on the almond is a decent starting point.

A last word

Roasting almonds is mostly about attention. Set a timer for the earliest check, trust your nose, and tip the nuts out a minute before you think they are done. Do that, and you will have a jar of crisp, golden almonds that taste far better than they have any right to for the effort involved.