Recipe for Plum Sauce: In a saucepan, heat 1 tbsp of the canola oil over medium heat. Cook 1 chopped onion, 1 tbsp of chopped garlic and 1 tbsp of chopped ginger for 1 minute. Add 4 large diced plums. Cook for 2 minutes. Add 1 tbsp of maple syrup, 1 tbsp of rice vinegar and 3/4 cup of vegetable broth. Bring to a boil, then simmer for 5 to 6 minutes over low-medium heat. Using a blender, blend the sauce until you obtain a smooth texture.