Apple chutney

6 peeled, cored, chopped Gala apples

1 1/4 cups diced red onion

1/3 cup apple cider vinegar(non-alcoholic)
1 teaspoon curry powder, or to taste
... 1 cinnamon stick
Pinch red pepper flakes (optional)
Combine all ingredients in a large saucepan and place over medium heat. Cover and cook, stirring frequently, until apples are tender but not falling apart, 12 to 15 minutes. Discard cinnamon stick. Serve warm, room temperature or chilled.