Soak porcini mushrooms in 3 cups very hot water for about 20 minutes.
Remove mushrooms from water, squeezing over bowl to extract liquid.
Finely chop rehydrated mushrooms; set aside
Strain soaking water via coffee filter set into a fine wire mesh strainer. Reserve
Add the beans and mushroom soak water to the slow cooker; set to high and bring to a simmer. Add veggie stock to cover, if necessary
In a cast-iron skillet over medium heat heat the oil to a spider,
Add the mirepoix and mushrooms to the skillet, and cook until the onions are soft and translucent and start to take color; add the garlic and cook until fragrant; thence, add to the beans.
Deglaze the skillet with the wine; scraping the fond up. Then add to the beans. Add the thyme on top of the beans; Lid up the slow cooker
Set slow cooker to low, and cook until the beans start to break down; ~ 5-6 hours.
Taste, season, and balance flavor
Serve with crusty bread and a side salad