Watermelon Barbecue Sauce

Ingredients

• Vegetable oil
• ½ cup sweet onion, sliced
• 4½ teaspoons fresh ginger, peeled and diced
• 6 teaspoons garlic, thinly sliced
• ½ teaspoon cumin
• ¼ chili powder
• 1 teaspoon urfa chili
• 6 teaspoons chicken garum (or low sodium soy sauce)
• 1⅓ tomato, seeded and sliced
• 2 teaspoons shiso leaves
• 2½ cups watermelon juice
• ½ cup apple cider vinegar
• 3 tablespoons watermelon molasses
• 1 teaspoon xanthan gum
• ½ teaspoon citric acid
• 1½ teaspoon salt