Sweet Spicy German Ketchup for Sausages - Traditional Recipe - Yummy Gusto

Ingredients

• 1 tablespoon cooking oil
• 6 tablespoons diced yellow onion
• 2 tablespoons hot curry powder, with extra for topping
• 1 cup (236 ml) tomato passata
• 2 teaspoons dark balsamic vinegar
• 2 tablespoons honey or 2 teaspoons regular sugar
• 1 teaspoon Worcestershire sauce
• 1/2 teaspoon table salt
• Water for thinning as needed