Identify your use: topping (needs flake texture) vs. baking/sauce (powder is easier to distribute).
Start with the listed swap ratio, then add spice in small increments if your substitute is hotter or milder than flakes.
For baking or thick sauces, stir well and taste after 1–2 minutes of heat so the flavor fully blooms.
If using a less-heat substitute (paprika or Aleppo), increase by small steps and balance with salt/acid so it doesn’t taste flat.
Let the dish sit briefly (2–5 minutes) and re-taste—heat perception often rises as it rests.