Sticky Pork Donburi Bowls

Ingredients

• 1 tbsp vegetable oil
• 2 onions, thinly sliced into wedges
• ¼ cup each mirin, saké and soy sauce
• 1 tbsp finely grated ginger
• 4 x 2cm thick slices of cooked porchetta
• 1 ¼ cups cooked sushi rice, cooked according to pack instructions
• ¼ cup small green cabbage, finely shredded
• 1 cup purple shiso leaves, to serve
• 2 tbsp furikake seasoning, to serve