Match your goal: if you need smooth texture for marinades/sauces, blend fresh minced garlic; if you need quick flavor, use a garlic powder slurry.
Use the listed ratio (paste-like swaps: 1:1; aromatic-only swaps like garlic-infused oil: use the higher amount).
Adjust thickness: add 1–2 teaspoons water or neutral oil at a time until it spreads like paste.
Adjust intensity: for sharper flavor, add the substitute later in the cook; for mellow flavor, cook longer or use roasted garlic.
Taste and correct: add a pinch of salt or a few drops of lemon/vinegar to bring garlic forward if needed.