- Heat a pan over medium heat and add a tablespoon of butter. 
- Once melted, add sliced mushrooms and cook for 4-6 minutes, stirring occasionally. Remove mushrooms and set aside. 
- In a blender, combine chopped mushrooms and wine, processing until a fine paste forms. 
- Heat oil in the same pan, then add onion and fry until golden. Stir in the mushroom paste, fresh thyme, pepper, coriander, garlic powder, and salt. 
- Bake for about 15 minutes, then add the sliced fried mushrooms, arugula, parsley, and turn off the heat. Optionally, add half of the grated cheese to the mushroom mixture. 
- Fill the pancakes with approximately 2 spoons of the filling mixture, sprinkle with grated cheese and parsley to taste.