"Create a savory jam inspired by bacon and bourbon jam, but without alcohol. Use boerewors, tomato, and onion as the main ingredients. Make it rich, sweet-savory, and spreadable, suitable for burgers, toast, or cheese boards. Include imperial measurements, clear steps, and safe cooking guidance for sausage and onions. Keep the flavor profile smoky, caramelized, and slightly tangy, with optional spices that complement boerewors."