Sourdough Conchas
Mexican sweet bread with a striped sugar crust. Pan dulce perfection. Enriched doughs ask for patience — the long ferment is what makes the result far better than anything off a supermarket shelf.
Enriched sourdough is bakery-window bread. The butter, the egg yolks, the long cold proof — it's a project, but the result is pillowy, golden, and unmistakably the result of patience.
Ingredients
Dough
- 450g bread flour
- 100g active sweet stiff starter
- 180g whole milk, warmed
- 2 large eggs
- 60g sugar
- 100g unsalted butter, softened
- 8g fine sea salt
Finishing
- Egg wash (1 yolk + 1 tbsp milk)
- Pearl sugar or simple syrup (optional)
Method
- 1
Build the levain
Feed your starter 4–6 hours ahead. For enriched doughs, a sweet stiff levain works beautifully.
- 2
Mix and develop
Combine flour, levain, milk, sugar, and eggs. Knead until silky, then incorporate softened butter a piece at a time.
- 3
Bulk ferment
Cover and bulk at 76°F for 4–6 hours, with one or two gentle folds. The dough should be smooth and slightly puffy.
- 4
Shape and proof
Shape into the desired form. Proof at room temperature 2–4 hours, or cold-proof overnight for deeper flavor.
- 5
Bake
Brush with egg wash. Bake at 350°F until deeply golden and a tester comes out clean, 25–40 minutes depending on shape.
Sarah's Tips
- Soft butter — not melted, not cold. The texture is everything.
- Enriched doughs ferment slower; budget extra time.
- Brush with simple syrup straight out of the oven for shine and tenderness.
Substitutions
Not everything has to come from the recipe list. Here's what swaps cleanly and what to watch for when you make a change.
Brown sugar, honey, or maple syrup all work. For honey or maple, reduce dough water by the same weight you add in sweetener.
Use room-temperature, not melted. Cold butter won't incorporate; melted butter shortens the gluten. Salted butter — just reduce added salt by half.
Half-and-half makes a richer crumb; oat milk works for dairy-free. Buttermilk adds tang.
What can go wrong
Every bake fails differently. Here are the three problems most likely to show up on this recipe — and how to recover.
Crumb is cottony but bland
Enriched doughs need a long cold proof for flavor — 24 hours minimum. The texture comes from the butter and eggs; the flavor comes from time.
Butter leaks during baking
Butter wasn't fully laminated into the dough. Soften it (not melted) and add in stages, kneading between additions until the dough is silky.
Bottoms burn before tops brown
Use a doubled sheet pan or insulated bakeware. Drop oven temp by 25°F and bake 5 minutes longer.
Trouble with the starter itself? Read the troubleshooting library →
Variations to try
Once you've baked the base recipe a few times, these are the riffs worth chasing.
- Add a streusel topping (50g butter + 80g flour + 60g sugar, rubbed together) for crunch.
- Soak dried fruit in dark rum or strong tea overnight before folding in.
- Replace half the milk with browned butter for a deeper, nuttier flavor.
Frequently asked
Can I make this without dairy?
Yes. Substitute oat or almond milk for the milk, and vegan butter (Country Crock plant butter holds up well) for the butter. The crumb will be slightly less rich but still very good.
Why is enriched dough so much slower?
Sugar, butter, and eggs all slow down yeast. Plan for 30%+ longer bulk and final proofs compared to lean doughs. The reward is worth the patience.
Can I make this overnight?
Yes — and you should. Cold-proof the shaped dough 12–24 hours in the fridge. Pull out 30 minutes before baking. Texture and flavor both improve.
Bake this with timers, scaling, and peak alerts.
Step-by-step timers that pause when you do. Dough-weight scaling rewrites every gram. Peak detection so you mix at the right moment. Log the bake when you're done.