SourdoughAmericanEasy

Sourdough Discard Mixed Berry Breakfast Loaf

Name: Sourdough Discard Mixed Berry Breakfast Loaf
Prep time: 15 min
Cook time: 55 min
Total time: 1 h 10 min
Yield: 1 servings
Cuisine: American
Ingredients: 1 cup (240 ml) sourdough starter discard, unfed, at room temperature; 1½ cups (195 g) all-purpose flour; 1½ tsp (7½ g) baking powder; ½ tsp (2½ g) baking soda; ½ tsp (3 g) kosher salt; ¾ tsp (1.8 g) ground cinnamon; ¼ tsp (½ g) freshly grated nutmeg; ¾ cup (150 g) granulated sugar; ¼ cup (55 g) light brown sugar, packed; ¼ cup (57 g) unsalted butter, melted, cooled slightly; 1 large egg, at room temperature; 1 tsp (5 ml) pure vanilla extract; 1 tsp (2 g) lemon zest, finely grated, finely grated from 1 lemon (optional); 1½ cups (210 g) mixed berries, fresh or frozen, patted dry, no thawing if frozen

From the MyKitchenBank Kitchen

A tender, subtly tangy breakfast loaf studded with mixed berries and a hint of vanilla. This recipe transforms sourdough starter discard into a moist crumb with gentle acidity that balances the fruit's sweetness. Perfect for breakfast or brunch, it's simple enough for weekday mornings yet special enough for company.

Prep: 15 min
Cook: 55 min
Wait: 15 min
Total: 1 hr 25 min
Makes: 1 loaf (10 slices)

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Steps

Before you start

Preheat oven to 350°F (175°C) for at least 15 minutes
Use sourdough discard at room temperature (not cold from the fridge)
Pat berries dry with paper towels to prevent sinking
Grease a 9×5-inch (23×13 cm) loaf pan thoroughly and line the bottom with parchment paper

1
Mix dry ingredients
- In a medium bowl, whisk together flour, baking powder, baking soda, salt, cinnamon, and nutmeg.
- Set aside.
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Ready when: no lumps visible in the dry ingredients
Tip: Sifting is optional but ensures even distribution of leavening agents
2
Combine wet ingredients
- In a large bowl, whisk together the sourdough discard, both sugars, melted butter, egg, vanilla extract, and lemon zest (if using).
- Whisk until well combined and smooth, about 1 minute.
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Ready when: mixture is fully incorporated with no lumps
Tip: Don't overmix; a few small flecks are okay
3
Fold in dry mixture
- Add the dry ingredient mixture to the wet ingredients.
- Using a rubber spatula, fold gently until just combined.
- The batter should look slightly lumpy; do not overmix.
- This protects the crumb from becoming tough.
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Ready when: flour is barely incorporated; lumps remain visible
Tip: Stop folding as soon as no streaks of flour appear. Overmixing develops gluten and toughens the loaf
4
Add berries
- Gently fold in the mixed berries until distributed throughout.
- Do not crush them.
- If using frozen berries, do not thaw; they'll cook through during baking and the cold temperature helps prevent them from sinking.
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Ready when: berries are visible throughout the batter
Tip: Toss berries lightly in a teaspoon of the flour mixture before folding to help distribute them evenly
5
Transfer to pan and smooth
- Pour the batter into the prepared 9×5-inch (23×13 cm) loaf pan, spreading it evenly with a spatula.
- Tap the pan gently on the counter a few times to release trapped air bubbles.
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Ready when: batter is level and fills the pan two-thirds full
Tip: Don't fill past two-thirds; the loaf will rise and may overflow
6
Bake the loafOven 350°F / 175°C
- Bake in a preheated 350°F (175°C) oven for 50–60 minutes.
- The loaf is done when a wooden skewer inserted in the center comes out with just a few moist crumbs (not wet batter), the top is deep golden brown, and the internal temperature reaches 210°F (99°C).
- If the top is browning too quickly (before 40 minutes), tent loosely with foil.
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Ready when: golden-brown top, skewer with moist crumbs only, internal temperature 210°F (99°C)
Tip: Insert skewer off-center to avoid hitting large berry clusters; moist crumbs are normal and preferred
7
Cool in pan
- Let the loaf cool in the pan for 15 minutes.
- This allows the structure to set without becoming dense.
- The loaf should pull away slightly from the sides of the pan.
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Ready when: loaf has shrunk slightly from the sides of the pan
Tip: Don't skip this step; turning out a hot loaf can cause it to crack or crumble
8
Turn out and cool completely
- Run a thin knife around the edge of the pan and turn the loaf out onto a wire rack.
- Place it right-side up and cool completely, about 1–2 hours, before slicing.
- This allows the crumb to set fully.
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Ready when: loaf is at room temperature and feels firm to the touch
Tip: Slicing a warm loaf can compress the crumb; patience yields better texture

Good to know

Tips

Room-temperature sourdough discard is crucial—cold discard blends poorly and may result in streaks in the batter
The sourdough's acidity balances the sweetness and enhances the crumb's moisture. Don't skip the baking soda; it neutralizes excess acid and aids rising
Gentle folding is the key to a tender crumb. Quick breads overworked during mixing become tough and dense
This loaf freezes beautifully. Slice it before freezing for easy individual toasting

Make ahead

Batter can be mixed and berries folded in up to 2 hours ahead of baking; cover and refrigerate. Bring to room temperature before transferring to the pan (add 5–10 minutes to baking time if baking cold).

Storage & reheating

Room temperature (wrapped loosely): 2 days. Refrigerator (airtight container or wrapped): 5 days. Freezer (well-wrapped in plastic and foil): 3 months. Thaw overnight in the refrigerator and warm gently in a 300°F (150°C) oven for 10 minutes if desired.

Substitutions

mixed berries, fresh or frozen → raspberries, blackberries, blueberries, or a single-berry variety. Any combination works. Fresh or frozen; do not thaw frozen berries
unsalted butter, melted → neutral oil (vegetable, canola, or light olive oil). Use 3 tablespoons (45 ml). The crumb will be slightly more tender but less rich
all-purpose flour → whole wheat flour or half whole wheat, half all-purpose. Adds earthiness; may require 1–2 tablespoons more liquid due to higher absorption
lemon zest, finely grated → orange zest or almond extract (0.5 tsp). Orange brightens berry flavor; almond adds subtle warmth