Watermelon Chutney

Ingredients

• 1/4 cup oil
• 1 red onion, minced
• 1 red bell pepper, minced
• 1 clove garlic, thinly sliced
• 1 teaspoon minced fresh ginger, or to taste
• 2 pounds watermelon, coarsely chopped
• 1 pound tomatoes, coarsely chopped
• 1 tablespoon lime juice, or to taste
• 1 tablespoon curry powder
• 1 pinch salt, or to taste
• 1 pinch white sugar, or to taste