Identify your use: spread (no baking), bake/melt, or sauce—then pick the substitute with the closest melt/creamy texture match.
Start with the listed ratio; if your substitute is stronger (like Roquefort), reduce first and add more only after tasting.
If the substitute looks grainy or uneven (common with strong blues), blend/smash until smooth for a cambozola-like spread.
For baking, cut the cheese into small pieces so it melts evenly; for sauces, warm gently to avoid separating.
Taste and correct: add a few drops of lemon for lift or a pinch of salt for roundness—then adjust heat/time to keep texture silky.