Storage Notes: This should last in the fridge for at least 2 weeks and up to 6 months in the freezer.
Sweetener: An allulose and stevia combination is the best we've tried, however I typically use just 1/32 teaspoon stevia extract powder total for ease and cost. Other sweeteners will work as well, but erythritol might thicken in after chilling so add water if needed. For liquid stevia use 8-15 drops, or to taste.
Measuring Tips: The measurements for some of the ingredients are small. You can either eyeball it (the recipe will likely be just fine as long as you don't really overdo it) or you can buy these measuring spoons for more exact results.
Texture tip: Tomato paste varies a lot by brand (some are thicker/more concentrated). This ketchup is meant to be thicker/dippable and it thickens when chilled. If it’s too stiff to scoop, whisk in water 1 tablespoon at a time until it loosens.