Baked Grapefruit Recipes Cut a grapefruit in half. Use a knife to separate the grapefruit into sections (pull away from the wall) drizzle each half with honey. Bake at 350 degrees for 12 to 15 minutes. A great way to enjoy grapefruit! Logging In... Profile cancel Sign in with Twitter Sign in with Facebook or CommentName EmailNot published Website This site uses Akismet to reduce spam. Learn how your comment data is processed.