Identify your goal: for baking, match both sweetness and acidity so browning and flavor balance stay on track.
Choose a substitute from the list, using the listed ratio (1:1 for closest matches; reduce for sweeter options).
If your substitute is thicker (nectar or applesauce), whisk it smooth and consider adding 1–2 extra spoonfuls of water to restore pourability.
If your substitute tastes flat or too sweet, add a small squeeze of lemon (or a few drops of vinegar) to recreate apple juice’s gentle tang.
Add the substitute to your recipe, then taste-adjust any remaining sweetness or spice at the end (especially for frostings and glazes).