Preheat your oven to 150°C (302°F), fan on. You can also use an air fryer: just line it with a liner or heat-safe dish and remember to give the almonds a quick stir once or twice as they roast.
First roast (Dry roast): Spread the almonds on a parchment-lined tray and bake for 5 minutes. This gives them a head start and makes them extra crunchy later.
Second roast (With Tamari and oil): Take the tray out, drizzle the Tamari and oil over the almonds, and toss them right on the sheet. Back in they go for about 10 minutes.
Check for doneness*: The almonds are ready when the Tamari has completely disappeared (no visible liquid left) and they look slightly darker and glossy from the oil.If they still look pale or wet: Give them another 3–5 minutes. You’ll know they’re perfect when you catch that rich, almost burnt Tamari smell; not sharp, just toasty and caramelized.
Take them out, toss with chili powder while they’re still hot (so it sticks), and let them cool completely for that irresistible crunch.
Nibble and enjoy. :)
Notes
*Tamari is the star and namesake here, but soy sauce works too! If using soy sauce, add a pinch of salt since it’s a bit less salty than Tamari. Also, keep in mind that Tamari is gluten-free, while soy sauce is not.