Identify your use: warm sauce, cold topping, baking, or savory dip—heat-stable swaps work best in warm dishes.
Start with the table swap ratio (1:1 for yogurt/sour cream/labneh; reduced ratio for cream cheese blends).
If the substitute is thinner or less tangy, adjust: strain (thickness) or add a small squeeze of lemon (tang).
If using in a hot dish, temper first: stir a spoonful of hot sauce into the substitute, then add back to the pot.
Taste and fine-tune: balance salt and acidity so the finished dish doesn’t taste flat or overly sour.