Rehydrate porcini mushrooms in 2 cups hot water for 30 minutes
Strain the mushroom liquid through a coffee filter, reserving the broth
Clean and slice fresh mushrooms into even pieces
Heat 1 tbsp each butter and olive oil in a skillet; sauté fresh mushrooms until golden brown
Season mushrooms with salt and pepper, then set aside
In a heavy-bottomed pot, melt 1 tbsp butter with 1 tbsp olive oil
Add diced shallots and sauté until translucent (about 3 minutes)
Add minced garlic and cook for 30 seconds until fragrant
Add Arborio rice to the pot, stirring to coat each grain
Toast rice for 2-3 minutes until edges become translucent
Pour in white wine, stirring constantly until absorbed
Combine mushroom liquid with broth and keep warm
Add warm broth one ladleful at a time, stirring until each addition is absorbed
Continue this process for about 18 minutes, maintaining a gentle simmer
Test rice for doneness - it should be al dente
Remove from heat and stir in sautéed mushrooms, remaining 1 tbsp butter, and Parmesan
Cover and let rest for 2 minutes
Finish with fresh herbs and adjust seasoning
Serve immediately in warm bowls
Garnish with additional Parmesan if desired