Heat oven to 325℉ (165℃).
Cut cabbage into wedges, making sure each cut goes through the core so the leaves hold together. Set aside.
Mix salt, white pepper, garlic powder, onion powder, and paprika in a bowl.
Season cabbage, especially the cut side in between the leaves.
Heat ¼ cup oil in a large cast-iron skillet over medium-high. Working in batches (if needed), add cabbage cut side down to the pan.
Cook, turning occasionally, until lightly charred, 3-4 minutes per side. Transfer cabbage to a plate.
Add the butter to the pan. Once it melts, add onions, garlic, and thyme, and saute for 2-3 minutes or until fragrant. Next, add the diced tomatoes and bouillon powder. Cook for 5-6 minutes.
Gradually pour in white wine and chicken broth. Stir and bring to a boil, then simmer for 2-3 minutes. Taste and adjust seasoning.
Next, return the browned cabbage to the pan, cover it with a lid, and place it in the oven.
Let it braise in the oven for 40 minutes or until the cabbage is tender. You can remove the lid in the last five minutes and broil the cabbage for a browner color if you wish.
Take it out of the oven and let it cool slightly. Garnish with parsley and serve.