Identify what you’re making (baked goods vs. glaze/sauce) and whether the recipe relies on thick, sticky body.
Choose the closest match from the ingredient list: grape molasses or a sweet balsamic reduction first.
Swap using the listed ratio; for wetter substitutes, simmer 2–4 minutes to thicken before adding to batter/glaze.
Taste the batter/sauce and correct: add a pinch of salt for balance or a splash of lemon juice if it needs tang.
If the substitute is drier/thicker than petimezi, loosen with 1–2 teaspoons of warm water (then mix thoroughly).