COOKING INSTRUCTIONS Heat a large skillet over medium-high heat.
Add the ghee. Brown onions until soft, about 5 minutes.
Add the garlic and sauté for 1 minute.
Add the remaining ingredients.
Bring to a boil, then simmer for 40 minutes, until slightly thickened.
Discard the thyme. Allow the sauce to cool and either purée with an immersion blender or transfer to a regular blender and purée until smooth. Return the ketchup to the pan and simmer for 1 hour, stirring occasionally. If stored in an airtight container, the ketchup can be kept in the fridge for up to a month. CHEF’S TIP Your ketchup will be as good as your tomatoes! It’s best to make this recipe with organic tomatoes when they are in season.