In a sealable glass container, whisk up tamari, maple syrup, apple cider vinegar, garlic powder, cumin and smoked paprika. Add sliced tempeh, seal and gently invert to coat tempeh with marinade.
Marinate on counter for up to 1 hour or in the fridge for up to a day.
When ready to cook, heat avocado oil in a nonstick skillet on medium heat. Fry tempeh until golden brown on both sides, about 2-4 minutes a side. Remove from heat.
For crispier edges, make sure not to crowd tempeh as it fries! Want it extra saucy? Remove fried tempeh, add remaining marinade to pan and let it bubble and thicken. Quickly toss the cooked tempeh with the marinade and serve.
Notes
Low FODMAP note: as of March 2026, tempeh is low FODMAP up to 170g serving. Always double check the FODMAP Friendly or Monash app as research changes!Also, I've quoted 2 servings here if you're using tempeh as your protein source...but if you just want a few slices as a side dish, you could serve up to 4 from one batch.