Spicy sweet and sour tempeh

This tempeh is sweet. salty, spicy and sour. Very moreish. The recipe is based on Indonesian tempe kering (dry tempeh) with my own twist. I used Korean chilli paste which has a sweeter more mellow flavour. I don't have any lime leaf so I sub with lime zest.

Ingredients:
about 300g tempeh
1 chopped onion
2 clove garlic, minced
2 tbsp Korean chilli paste (gochujang)
2 tbsp soy sauce
some sugar