Though traditionally served with coffee or tea, this cake pairs wonderfully with hot chocolate or spiced apple cider. To ease the spreading of the thick batter over the cinnamon-sugar layer, drop spoonfuls across the surface and gently spread each with a silicone spatula. For a simple twist, fold about 1½ cups of fresh blueberries or diced apples into the batter—extend baking time by 5–10 minutes if needed. When doubling or tripling, bake each batch in a separate 9×13-inch pan. Store at room temperature in an airtight container for up to 3 days, refrigerate for up to a week, or freeze for as long as 3 months when well wrapped. Reheat individual servings in the microwave in 10-second intervals or warm in the oven wrapped in foil at 350°F for 6–8 minutes.