Choose your substitute based on the dish you are preparing: comté for fondue and French onion soup, Emmental or Jarlsberg for gratins and everyday cooking, Fontina for pasta and risotto, aged white cheddar for casseroles.

Replace Gruyere cheese with the substitute at a 1:1 ratio for consistent melt and flavor balance.

Adjust seasoning to complement milder substitutes like Emmental or Jarlsberg as they lack Gruyere's complexity.

For richer, funkier flavors use Raclette, but reduce quantity if you want subtler taste.

Avoid using sharp or grainy substitutes like aged cheddar in dishes requiring smooth melting texture, especially fondue.

Test substitutes with a small batch before cooking to tweak flavor and texture as needed.

When mixing cheese substitutes, consider blending Emmental with Parmesan in a 3:1 ratio to better mimic Gruyere in gratins and baked pasta.