Identify what your recipe needs: tart fruit pieces (baking), sweet-tart bursts (muffins/cookies), or a cranberry-colored liquid (glazes/sauces).
Choose the substitute that matches that role from the list, then apply the ratio for fruit or jam/sauce equivalents.
If your substitute is wetter (frozen/diluted rehydrated fruit), drain 2–5 minutes or reduce by simmering briefly so batter doesn’t loosen.
If your substitute is sweeter (jam, pie filling, rehydrated dried fruit), add a small splash of lemon juice or vinegar to restore cranberry-like tang.
Bake or simmer as directed, then taste once cooked—adjust with acid first, sweetness second.