Sourdough Cinnamon Swirl Sandwich Loaf

Make a lightly enriched sourdough pan dough, roll it out, coat with butter and cinnamon sugar, roll into a log, and bake in a loaf pan for clean swirl slices.

Swirl mix

• 40g soft butter
• 60g brown sugar
• 10g cinnamon
• Pinch salt
• Optional: raisins or orange zest

Keys to a clean swirl

Roll evenly, leave a small border, seal the seam tightly, and proof fully in the pan. Underproofed swirl loaves burst and create gaps; overproofed loaves blur the spiral.

Baker's notes

Weights assume a digital scale. If your kitchen is warmer than ~75°F, expect faster fermentation and consider reducing starter percentage or using cooler water. If colder, extend bulk and rely on dough cues over the clock. Pat mix-ins dry; wet inclusions effectively raise hydration and can wreck strength.

Make-ahead and storage

Shaped dough can usually cold-proof overnight. Baked loaves keep best cut-side down on a board for a day, then bagged. For longer storage, freeze slices or whole loaves and reheat with a light sprinkle of water in a moderate oven.

One thing to remember

A ripe starter cannot rescue dough that never fermented long enough after mixing.

Baking finish

Uncover to color, but verify doneness with internal temperature. Dark crust can still hide a wet center in large or fruited loaves.

Scaling

Double ingredients by weight, not fermentation time. Larger dough masses hold heat and may finish bulk earlier.

Field notes

The fastest way to improve at this is to pair the technique with the same base dough for several weekends. Keep salt around 2%, know your dough temperature, and judge readiness with rise and feel before you invent exotic fixes. If results swing wildly, stabilize feeding and room temperature for a week so you can see the signal again. Season the process to your kitchen, then play with inclusions once the base loaf is trustworthy.

Also useful: weigh everything, preheat longer than you think, and cool fully before you judge crumb quality. Those three habits make every other tip more reliable.

Frequently asked questions

Gaps in the spiral?

Usually underproof or loose rolling — seal edges and proof longer.

Icing?

Powdered sugar glaze after cooling if you want bakery style.

Overnight?

Cold proof in the pan works well.

Enriched dough timing differs from lean loaves — SourdoughAI learns your cinnamon loaf curve separately.