Bread

By Overalls and Lab Coats
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Sweet Potato Sourdough Rolls

Soft, lightly sweet sweet potato sourdough dinner rolls with overnight fermentation and a golden buttery finish.

Soft sweet potato sourdough dinner rolls baked until golden brown.

Prep

30 mins active (+ overnight fermentation)

Cook

18-22 mins

Total

14-18 hrs

Calories

214 kcal

Protein

7.5 g

Carbohydrates

39.1 g

Serves

12 rolls

Fat

3.2 g

These sweet potato sourdough rolls are the kind of recipe that quietly becomes a staple. They bake up soft and fluffy with a lightly sweet crumb and beautiful golden tops. Mashed sweet potato adds moisture and natural sweetness, while active sourdough starter brings depth without making the rolls overly tangy. The overnight refrigerator fermentation makes the dough easier to handle and lets you bake fresh rolls the next day. This is a practical make-ahead roll recipe for weeknight dinners, holiday meals, or warm-with-butter snacking.Best part? You can mix the dough the night before and bake fresh rolls the next day.

Quick Answer

Mix: Night before with a 30-minute rest before kneading

Cold ferment: Overnight in the refrigerator

Final proof: 2 to 3 hours at room temp, or faster around 75 to 80 F

Bake: 375 F for 18 to 22 minutes

Yield: 12 rolls

Learn Why Sweet Potato Works Here

How Sweet Potatoes Impact Dough explains why sweet potato helps these rolls stay soft, moist, and easier to shape.

Why You'll Love This Recipe

Soft, fluffy texture thanks to sweet potato

Light natural sweetness from honey or maple syrup

Make-ahead friendly with overnight fermentation

Simple ingredient list and straightforward shaping

Great for family dinners or holiday meals

Ingredient Notes (Milk vs Water vs Kefir)

LiquidFlavor Result
MilkSoft, rich, classic
WaterMore neutral, slightly lighter
Water kefirSlight tang, deeper flavor

Instructions

Step 1: Mix the Dough (Night Before)

In a large bowl or stand mixer, combine:

flour

milk (or water kefir or water)

mashed sweet potato

sourdough starter

Mix until combined and let rest for 30 minutes (autolyse).

Add:

honey or maple syrup

salt

softened butter

Knead until smooth and elastic (about 6–8 minutes).

Step 2: Bulk Fermentation

Cover and let rest at room temperature for 1 hour

Transfer to the refrigerator and ferment overnight

This slow fermentation builds flavor and improves texture.

Step 3: Shape the Rolls (Next Morning)

Remove dough from refrigerator

Let sit at room temperature for 45–60 minutes

Divide into 12 equal pieces (~85 g each).

sweet potato rolls shape into balls

Shape each piece into a tight ball.

sweet potato rolls shape

Place into a buttered baking dish (slightly spaced apart).

Final Proof

Let the rolls rise until soft and puffy.

Time:

Room temp: 2–3 hours

Proof setting (optional): faster at ~75–80°F

What Properly Proofed Rolls Look Like

You’re looking for:

✔ noticeably puffed and expanded

✔ dough feels light and airy

✔ rolls are beginning to touch

✔ poke test: dent slowly springs back

If it springs back quickly → needs more time

If it stays indented → slightly overproofed

Bake

Preheat oven to 375°F

Bake for 18–22 minutes, until golden brown

sweet potato rolls in oven

Brush with melted butter immediately after baking.

Timing Example (Real-Life Schedule)

Night Before

7:00 pm – mix dough

7:30 pm – knead

8:30 pm – rest complete

9:00 pm – refrigerate

Morning

8:00 am – remove dough

9:00 am – shape rolls

9:30 am – begin final proof

11:30–12:00 pm – bake

Tips for Success

Use smooth, well-mashed sweet potato (no chunks)

Dough should feel soft but manageable—not overly sticky

Don’t skip the overnight rest—it improves both flavor and texture

Milk gives the most browning, while water kefir adds tang and fermentation benefits

Equipment

  • Kitchen scale

  • Large mixing bowl or stand mixer bowl

  • Stand mixer with dough hook (optional)

  • Bench scraper

  • 9 x 13 inch baking dish or similar buttered dish

  • Plastic wrap or lid

  • Pastry brush

Ingredients

Soft sweet potato sourdough dinner rolls baked until golden brown.

Sweet Potato Sourdough Rolls

Author: Overalls and Lab Coats

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Prep time

30 mins active (+ overnight fermentation)

Cook time

18-22 mins

Total time

14-18 hrs

Yield

12 rolls

Servings
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Ingredient notes

  • Milk gives the most classic flavor, water keeps things simpler, and water kefir adds the most depth.

  • Honey and maple syrup both work well here; maple makes the sweetness slightly deeper and warmer.

Step-by-step

12 rolls
  1. 1

    Mix the dough (night before)

    • Ingredients:
      • 500 g bread flour
      • 200 g milk, water, or water kefir
      • 150 g mashed sweet potato
      • 120 g active sourdough starter
    • Action: Mix until no dry flour remains. Let the dough rest for 30 minutes to hydrate the flour.
  2. 2

    Add enrichments and knead

    • Ingredients:
      • 25 g honey or maple syrup
      • 9 g salt
      • 30 g softened butter
    • Action: Add the sweetener, salt, and butter, then knead until smooth and elastic, about 6 to 8 minutes in a mixer or by hand.
  3. 3

    Bulk fermentation

    • Ingredients:
      • Dough
    • Action: Cover and let the dough rest at room temperature for 1 hour. Transfer to the refrigerator and ferment overnight.
  4. 4

    Warm slightly and divide (next morning)

    • Ingredients:
      • Chilled dough
    • Action: Remove the dough from the refrigerator and let it sit at room temperature for 45 to 60 minutes. Divide into 12 equal pieces, about 85 g each.
  5. 5

    Shape the rolls

    • Ingredients:
      • Divided dough pieces
    • Action: Shape each piece into a tight ball and place in a buttered baking dish, leaving a little space between the rolls.
  6. 6

    Final proof

    • Ingredients:
      • Shaped rolls
    • Action: Let the rolls rise until soft and puffy, about 2 to 3 hours at room temperature or faster in a proof setting around 75 to 80 F.
  7. 7

    Bake

    • Ingredients:
      • Proofed rolls
    • Action: Bake at 375 F for 18 to 22 minutes, until golden brown on top and baked through.
  8. 8

    Brush and serve

    • Ingredients:
      • Melted butter (optional)
    • Action: Brush with melted butter immediately after baking for a softer, shinier top.

Step insights

  1. The overnight cold fermentation improves flavor and makes the dough easier to shape cleanly the next morning.

Nutrition

NutrientPer servingPer batch
Calories214 kcal2564 kcal
Protein7.5 g89.9 g
Fat3.2 g37.8 g
Saturated Fat1.6 g19.4 g
Carbohydrates39.1 g468.8 g
Fiber1.5 g17.7 g
Sugars2.9 g35 g
Cholesterol7 mg80 mg
Sodium332 mg3980 mg
Vitamin A81 mcg968 mcg
Vitamin C1 mg8 mg
Vitamin E0.3 mg4.2 mg
Calcium35 mg424 mg
Iron2.8 mg33.1 mg
Magnesium22 mg265 mg
Potassium114 mg1366 mg

Nutrition notes

  • Estimated with 2% milk, a 100% hydration sourdough starter, and no optional butter brush.

  • Using water or water kefir instead of milk lowers calories and saturated fat slightly.

Nutrition information is automatically calculated, so should only be used as an approximation.

Tips & tricks

  • Use smooth, well-mashed sweet potato with no chunks for the softest dough.
  • The dough should feel soft but manageable, not overly sticky.
  • Do not skip the overnight refrigerator rest; it improves both flavor and texture.
  • Milk gives the best browning, while water kefir adds more tang.

Storage & reheating

  • Store covered at room temperature for 1 to 2 days.

  • Refrigerate up to 5 days.

  • Freeze baked rolls up to 2 months; thaw and warm before serving.

Troubleshooting

  • If the rolls are dense, the dough likely needed more final proof time or the starter was not active enough.

  • If the dough feels very sticky, let it rest before adding extra flour so the sweet potato can fully hydrate the dough.

  • If the tops brown too fast, tent the pan loosely with foil for the last several minutes.

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