How to turn stale nuts into a tasty snack - recipe | Waste Not (2024)

Last summer, we made baklava for 100 people at a wedding, but somehow misjudged the amount of nuts we needed and were left with a mountain of pistachios and walnuts. Although it’s unlikely you’ll have quite the quantity we had, a pack of nuts is easily forgotten, left to go stale at the back of the larder.

Stale nuts are totally fine to eat, of course, but they do need to be processed to make them delicious again. Just toasting them in a dry pan or oven should be enough to revive them, but they’ll also go in any recipe that requires nuts. We got through most of ours by toasting them with spices, to eat as nibbles or to add crunch to soups, stews and salads.

I also made a vivid green marzipan with some of the pistachios. To make marzipan with any nut, blend them to a fine powder, then blend in three-quarters of their weight in icing sugar with a splash of water, until the mix comes together into a ball. It keeps in the fridge indefinitely.

Spiced nuts

The simplest way to revive a stale nut is by dry roasting or toasting it in a pan over a medium heat. However, adding a touch of oil, salt (if using unsalted nuts), some spices and sweetener will create an incredibly addictive snack out of an ingredient that would otherwise be good for nothing except feeding to the birds.

Nuts
A dash of oil
(optional)
Sea salt (optional)
Spices (smoked paprika, cumin, cayenne, ginger, cinnamon, etc (optional), or
Sweetener: maple syrup, honey, agave, etc (optional)

Heat a heavy-based pan over a medium heat. Toast the nuts for five minutes, or until they begin to colour. At this point, you can stop and serve them as they are, or you can flavour them with a variety of toppings. Just a pinch of sea salt will often satisfy, but if you’d like to add spices, do so now with a glug of oil: any spice will do, so take your pick from smoked paprika, cumin, cayenne, etc.

If you want to sweeten them instead, top with a drizzle of maple syrup or honey and let it bubble up and caramelise around the nuts, stirring all the while, then remove from the pan and serve.

How to turn stale nuts into a tasty snack - recipe | Waste Not (2024)

FAQs

How do you make old nuts taste better? ›

Just toasting them in a dry pan or oven should be enough to revive them, but they'll also go in any recipe that requires nuts.

What can I make with stale nuts? ›

5 Smart Ways to Use a Mixture of Leftover Nuts
  1. Granola. Quite possibly the ultimate dumping ground for a mixture of leftover nuts. ...
  2. Quick breads and muffins. Sure, we all know and love banana-walnut muffins, but there's no hard and fast rule that walnuts are the only nut that can be used. ...
  3. Crisps and crumbles. ...
  4. Oatmeal. ...
  5. Salads.
Apr 6, 2015

What can I do with spoiled nuts? ›

If a nut is only slightly stale, says Kanney, it can usually still be toasted to revive some of its previous glory and (crunch). However, Kanney says, “If a nut has spoiled or gone rancid, recognizable by a sour or bitter flavor, the nut is no longer good and should be thrown away.”

How do you refresh stale pistachio nuts? ›

Put them in an air tight container. If they get stale, put them in the oven for about 15 to 20 minutes at 350 degrees.

Can old nuts be refreshed? ›

To freshen any type of nuts before you eat (or cook with) them, toast on a baking sheet in a 350 degrees F oven for 10 minutes or place nuts in a small bowl and microwave on High for 1 to 1 1/2 minutes.

Why do nuts taste stale? ›

But truly rank nuts can be “bitter, sour, and potentially cheesy or vomit-like,” says food scientist Topher McNeil. The science behind this unfortunate transformation is a complicated chemical reaction called oxidation. Fueled by exposure to air, light, and heat, unsaturated fats break down and release free radicals.

Which nuts go rancid the quickest? ›

"Nuts have a wide range of fat contents," says LaMarita. Almonds, walnuts, and pistachios are lower in fat, so they'll generally last longer than nuts higher in fat, like macadamia nuts, pine nuts, cashews, and Brazil nuts, all of which will go rancid quicker, says LaMarita.

Do nuts get stale sitting out? ›

A: Nuts can't expire; however, they can change in taste or go rancid. Nuts contain much-unsaturated fat, an oil that makes nuts likely to go rancid. Nuts spoil faster when exposed to light, air, or heat. No fuss; cool, dark, and air-sealed are the three trifectas to storing nuts properly.

Can I bake with expired nuts? ›

Despite folk wisdom about reheating stale nuts to make them taste a little better, don't use stale nuts in baking.

Can stale nuts make you sick? ›

Consuming rancid or stale nuts like almonds, walnuts or cashews in small amounts may not immediately make you sick, but it's generally not advisable as it may hamper digestion or have other harmful effects on your body in the long term.

Can you feed rancid nuts to squirrels? ›

But if the peanuts are stale or if you see any sign of mold or discoloration, then do not give them to the squirrels. The same idea goes for corn. Although many people leave dried corn cobs out for squirrels, it can actually be harmful to them. The corn can get moldy, just like peanut shells.

How do you make stale nuts taste fresh? ›

Spread the stale snacks out on a cookie sheet and place in a 350o F oven. Let them bake for about 10 minutes and then remove from the oven and let cool completely. Once cooled the snacks should be crispy and refreshed. You can use this method with fresh nuts like almonds, peanuts, walnuts, etc.

How do you use stale nuts? ›

If they are stale you can toast them in the oven to revive their flavor, but if they are rancid, it's best to toss them.

How do you freshen stale nuts in the microwave? ›

Microwave the nuts at one-minute intervals, stirring in between until evenly toasted and golden. Depending on the amount of nuts you're working with, this takes between three and eight minutes or so, and the results are more even and better-flavored than anything you can get out of a skillet or toaster oven.

Can you eat expired nuts? ›

Generally, nuts may be safe to eat well past their expiration date if they have been stored properly and show no signs of spoilage such as a rancid smell or an off taste. The appearance of mold or noticeable changes in texture are also red flags that the nuts should not be consumed.

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