Sourdough marbled bread using an enriched base dough at 17% inoculation. Same lamination technique as the yeasted version with a richer, more complex flavor.
Base Dough
| Metric | Volume | Ingredient |
|---|
| 400g | 3¼ cups | Bread flour |
| 192g | ¾ cup + 1 tbsp | Warm water (80-85°F / 27-29°C) |
| 60g | ¼ cup | Warm whole milk |
| 68g | ¼ cup + 1 tbsp | Active sourdough starter (at peak) |
| 20g | 1 tbsp | Honey |
| 30g | 2 tbsp | Unsalted butter, softened |
| 8g | 1½ tsp | Fine sea salt |
Color Options (choose one or two)
| Metric | Volume | Ingredient |
|---|
| 15g | 2 tbsp | Dutch process cocoa powder (brown/black) |
| 10g | 1 tbsp + 1 tsp | Matcha powder (green) |
| 10g | 1 tbsp + 1 tsp | Beet powder (red/pink) |
| 5g | 1 tsp | Activated charcoal (dramatic black) |
| 8g | 2½ tsp | Butterfly pea flower powder (blue/purple) |
Egg Wash
| Metric | Volume | Ingredient |
|---|
| 1 | 1 | Large egg |
| 15g | 1 tbsp | Water |
🧪 Day 1 Morning — Check Your Starter
1
Float test
Drop a spoonful of starter into water. If it floats or hovers, it's ready. If it sinks, feed it and wait 3-4 hours. An under-ripe starter in enriched dough is the #1 cause of dense, under-risen loaves.
🧪 Why 17% Inoculation?
Butter coats yeast cells; sugar pulls water away through osmotic pressure. Together they slow fermentation significantly. The higher 17% inoculation gives enough yeast activity to push through the enrichments in a reasonable timeframe.
🥣 Day 1 Morning — Mix the Base Dough
2
Combine wet ingredients
Whisk warm water, warm milk, starter, and honey in your stand mixer bowl until combined.
3
Add flour, salt, and knead 8 min
Add bread flour and salt. Mix on low until shaggy, then medium for 6-8 minutes until smooth and slightly tacky.
4
Add butter 4 min
Add softened butter one tablespoon at a time. Wait for incorporation between additions. Check for the
windowpane test when done.
⏰ Day 1 — Bulk Fermentation
5
At 30 and 60 minutes, perform one set of stretch and folds. Four folds per set. This builds structure.
6
Rest undisturbed 4-6 hrs total bulk
After folds, let rest until 50% volume increase. Dough should feel airy and jiggle like set gelatin when you shake the container. Don't wait for a full double.
🧪 Reading Enriched Dough Bulk
Fat coats CO2 bubbles, preventing the large air pockets that cause lean doughs to double. Look for 50% growth, a domed surface, and a lighter, airier feel when handled.
🎨 Day 1 Afternoon — Divide and Color
7
Divide and add colorant 10 min
Divide dough into equal portions. Knead chosen colorant into each portion for 2-3 minutes until even. Keep one plain if desired. Shape into balls and rest 15 minutes.
🌀 Day 1 Evening — Laminate, Shape & Refrigerate
8
Roll, stack, and roll into log
Roll each portion to a 10x8 inch rectangle. Stack, press firmly, roll from short end into a tight log. Pinch seam. Place seam down in greased 9x5 loaf pan.
9
Cold retard overnight 8-12 hrs
Cover tightly with plastic wrap and refrigerate 8-12 hours. The cold retard deepens flavor and firms butter for crisper marble layers.
🔥 Day 2 Morning — Final Proof and Bake
10
Warm up and proof 30-60 min
Remove from fridge. Let come to temp and finish proofing until dough crowns 1 inch above pan rim. Preheat oven to 350°F (175°C).
11
Egg wash and bake 35-40 min
Brush with egg wash. Bake at 350°F (175°C) for 35-40 minutes until deeply golden and internal temp reaches 190-195°F (88-91°C).
12
Cool completely 1 hr min
Remove from pan immediately. Cool on wire rack at least 1 hour. The cold-proofed crumb is more delicate — give it the full hour.
💡 Pro Tip
The sourdough version keeps a day or two longer than the yeasted version. Natural acids from fermentation act as a mild preservative.
Total hydration: 65% · Inoculation: 17%
Room temp: 3-4 days in a bread bag or beeswax wrap
Frozen: Up to 3 months. Slice before freezing.
Refresh: Warm at 325°F (165°C) for 8 min or toast directly.
Per slice (~60g): 178 cal · 30g carbs · 5g protein · 4g fat · 2g sat fat · 1g fiber · 195mg sodium
Want the same marble in half the time? Try the Yeasted Marbled Bread — same technique, ready in about 4 hours.
