Can I use all fresh mushrooms instead of dried shiitake? You can but the result will be noticeably less savory. Dried shiitake mushrooms contain a concentration of glutamates that fresh mushrooms do not. The fresh cremini mushrooms provide body and texture. The dried shiitake provides the depth. Both are necessary for the correct result.
Can I make this without tofu? Yes. Replace the tofu with 60g of unsalted butter cut into cubes and added to the food processor while the mushroom mixture is still warm. The butter melts into the mixture and produces a richer, creamier result. The flavor is slightly different but the texture is correct. This version is not vegan. For the full breakdown of vegan bánh mì builds, see the Is Bánh Mì Vegan guide.
How long does it keep? Five days refrigerated in a sealed container with plastic wrap pressed directly against the surface. It does not freeze as well as pork liver pâté. The texture becomes slightly grainy after defrosting. Best made fresh and used within the week.
Is this the same as store-bought vegetarian pâté? Store-bought vegetarian pâté varies significantly in quality and flavor. Most versions use soy protein or wheat gluten rather than mushrooms. The homemade mushroom version produces a more complex savory result. If you need a store-bought option, look for a mushroom-based version at Vietnamese grocery stores rather than a generic vegetarian spread.
Can I use soy sauce instead of Maggi? You can but Maggi Seasoning Sauce produces a cleaner, more concentrated hit of umami with less of the sweet fermented character that soy sauce brings. If using soy sauce, reduce the quantity by about a quarter and taste carefully before adding more. The pâté should taste savory and clean, not sweet.