Can I make this cabbage dish ahead of time?
Yes. Sear the cabbage, prepare the cream sauce, and assemble in a baking dish up to 4 hours ahead. Cover and refrigerate, then bake when ready, adding 5–10 minutes to baking time.
What's the best way to slice the onions for caramelizing?
Slice the onion thinly (about 1/4 inch) and cook low and slow in butter for 15–20 minutes until golden and sweet, stirring occasionally. This develops depth of flavor.
How do I know when the cabbage is done cooking?
The cabbage should be tender when pierced with a fork and the cream sauce should be bubbling around the edges. The top may develop light browning.
Can I use red cabbage instead of green?
Yes, red cabbage works, though it will be softer and the color will bleed slightly into the cream sauce. The flavor profile remains similar.
How do I reheat leftovers?
Cover with foil and reheat at 325°F for 15–20 minutes until warmed through, or microwave individual portions for 1–2 minutes.