Place the roast in a slow cooker.
Layer the sliced onions, bay leaves, crushed bouillon cubes, and crushed garlic over the roast.
Pour the cream of mushroom soup over the layers of ingredients.
Make sure to spread it evenly for the best flavor distribution.
Add the Chardonnay and enough water to cover all the ingredients in the slow cooker.
This helps ensure everything cooks evenly and remains moist.
Set the slow cooker to the low setting.
Cook for 8 hours to achieve a tender, flavorful roast.
Check for tenderness and adjust cooking time if needed.
When ready, serve warm alongside your favorite vegetables or sides.