Easy homemade sweet and sour sauce
For the stir fried vegetables:
diced (I used red, yellow and green)
(~ 1 cup) frozen edamame (soy beans)
tin bamboo shoots,
drained (120g, or ~ 1 cup, when drained) (optional)
(~ 1 cup) pineapple chunks (I used tinned)
For the homemade sweet and sour sauce:
(~ 1/2 cup) tomato ketchup
(~ 1/2 cup) pineapple juice (I used the juice from a tin of pineapple chunks)
white wine vinegar
(or agave nectar)
Heat a dash of oil in a large frying pan or wok, and add all the chopped vegetables and pineapple. Stir fry for a few minutes, until slightly softened.
In a mixing bowl, combine all of the sauce ingredients, and mix well. Pour over the vegetables, and bring to a simmer. Cook until the sauce has thickened to your liking - around 10-20 minutes.