In a heavy saucepan, heat the oil over medium heat. Add the onion and bell pepper, and cook, stirring, until soft, about 4 minutes. Add the garlic, pepper, ginger, turmeric, cinnamon, salt and pepper flakes, and cook for 1 minute, stirring.
Add the berries, sugar, and vinegar and simmer over low heat until thickened and reduced, about 25 to 30 minutes, stirring occasionally. Add the mint and cook 2 minutes. Remove from the heat and cool to room temperature before serving.
Beverage Suggestion: Mission Hill Merlot 1999
Yield: About 1 1/2 cups