Saute minced shallots and garlic in a skillet until translucent.
Then, add white wine and cook the shallot garlic mixture until it begins to brown and slightly burn the bottom of the pan.
Next, add ½ cup of vegetable broth and stir, removing the brown areas on the pan's bottom with a wooden spoon or whisk.
Now, pour in the cashew cream, scraping the sides of the blender to get it all.
Whisk together with the other ingredients and add tomato paste.
The mixture will immediately thicken; reduce the heat to simmer.
Now stir in the remaining 1 ½ cups of vegetable broth.
Whisk again, increase the temperature to low, and stir until it thickens again; then, remove from the heat.
Pour the sauce over the mushrooms, filling the mushroom holes and surrounding the mushrooms with the sauce.
Cover with aluminum foil or a top of some kind.
Place in the refrigerator until ready to cook.
Preheat the oven to 350 degrees.
Cook covered for 35 minutes; remove the cover, and cook another 5 minutes uncovered.
Remove from the oven, place the creamy mushrooms in a serving dish, and garnish with parsley and thyme.
You may want to serve it with some crusty bread to dip in the extra sauce.