Brush off dirt, pine needles, and debris from the saffron milk caps. Remove the stems and clean gently with a dry kitchen towel. Don't rinse. Slice into thin strips.
Finely dice the onion and chop or crush the garlic.
Melt butter in a frying pan. Sauté the onion and garlic over medium heat until fragrant and translucent.
Add the sliced mushrooms, season with salt and black pepper, and cook slowly. Stir often to prevent burning.
Sauté for 10 minutes, letting the water evaporate. Optional: Add a splash of white wine for extra flavor.
Taste-test the mushrooms. Once fully cooked, stir in ½ cup heavy cream, thyme, and marjoram. Cook for another 5 minutes until thickened, then mix in fresh parsley. Let the mixture cool slightly before blending. Use a blender or hand blender to puree until smooth and creamy.
Chill the pâté in the fridge for a few hours to let the flavors meld. Store in a clean jar.
For longer storage, seal the jar with a layer of melted butter to keep it fresh for up to a week.
Serve on fresh or toasted bread. Bon appétit!