Heat 1/3 cup olive oil in a medium frying pan over medium heat. Peel 1kg Red Jacket potatoes and cut into 2cm pieces. Add to pan and cook, stirring often, for 20 minutes.
Add 1 brown onion, finely chopped, and cook, stirring often, for a further 10 minutes or until onion is soft and potato golden. Pour over 6 whisked eggs. Reduce heat to low and cook for 12-15 minutes or until set on one side.
Loosen tortilla around edges. Cook under a preheated grill for a further 5 minutes or until top is set and golden. Turn out onto a board. Cut into pieces. Serve with tomato relish.
Serving size: 6
Recipe courtesy of taste.com.au