Can I prepare these potatoes ahead of time?
Yes. Bake, hollow, and fill the potatoes up to 24 hours ahead. Refrigerate covered, then reheat at 350°F for 15–20 minutes before adding the egg.
How do I get a runny egg yolk without overcooking the whites?
Add the egg in the final 5–7 minutes of baking at 375°F, or fry it separately and set it on top of the hot potato just before serving.
Can I use red potatoes or Yukon golds instead of russets?
Russets are best for their fluffy interior and sturdy skin. Red or Yukon golds will work but are warier and won't hollow as cleanly.
What if I don't eat meat?
Omit bacon and add sautéed mushrooms, caramelized onions, or crispy sage for umami and texture.
How many servings does this make?
The recipe yields 5 twice-baked potatoes, making 5 individual servings or 2–3 hearty breakfast portions depending on appetite.