Sourdough Discard Gingerbread
A tender, deeply spiced gingerbread cake made with active sourdough discard for tanginess and lift. The dough rises slightly before baking, creating a moist crumb that stays fresh for days. Perfect on its own or topped with whipped cream or a simple glaze.
- Prep
- 15 min
- Cook
- 40 min
- Wait
- 20 min
- Total
- 1 hr 15 min
- Makes
- One 9×13-inch (23×33 cm) cake (12 pieces)
Steps
Before you start
- Preheat oven to 350°F (175°C) 15 minutes before baking
- Use sourdough discard that has been fed and is bubbly and active (within 4–8 hours of feeding)
- Have all ingredients at room temperature for even mixing
Mix wet ingredients
- In a large mixing bowl, whisk together the active sourdough discard, molasses, vegetable oil, and eggs until fully combined and smooth, about 1 minute.
- The mixture should be homogeneous with no streaks of molasses.
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Ready when: Wet ingredients are fully combined and smooth
Tip: Whisk thoroughly to ensure the molasses is evenly distributed; pockets of molasses can cause overly dense spots.
Combine dry ingredients
- In a separate bowl, whisk together the flour, baking soda, ground ginger, cinnamon, cloves, and salt.
- Make sure the spices are evenly distributed throughout the flour.
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Ready when: Dry ingredients are uniform in color with no visible spice clumps
Tip: Whisk the spices into the flour first to break up any lumps and ensure even seasoning.
Combine wet and dry
- Add the dry ingredients to the wet mixture and fold together with a wooden spoon or spatula until just combined.
- Do not overmix; stop as soon as no dry flour is visible.
- A few small lumps are fine.
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Ready when: No visible dry flour remains; small lumps are acceptable
Tip: Overmixing develops gluten and makes the cake tough. Stop folding as soon as the flour disappears.
Add hot water
- Pour the boiling water over the batter and fold gently until incorporated.
- The batter will be loose and pourable.
- This creates a tender, moist crumb.
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Ready when: Boiling water is fully incorporated and batter is pourable
Tip: The hot water may seem like a lot, but it is essential for moisture and tenderness; do not reduce it.
Prepare pan and transfer batter
- Line a 9×13-inch (23×33 cm) baking pan with parchment paper or lightly oil it.
- Pour the batter evenly into the pan and smooth the top with a spatula.
- The batter will be quite thin.
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Ready when: Batter is evenly distributed in the pan
Tip: Use parchment paper for easy removal and cleanup.
Rest before baking
- Let the batter rest at room temperature for 15–20 minutes.
- You may see small bubbles forming on the surface as the sourdough discard produces gas.
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Ready when: Surface may show small bubbles; batter looks slightly risen
Tip: This rest time adds subtle tanginess and helps the cake rise evenly in the oven.
Bake the cakeOven 350°F / 175°C
- Place the pan in a preheated 350°F (175°C) oven and bake for 38–42 minutes, until a wooden toothpick inserted in the center comes out with just a few moist crumbs (not wet batter).
- The top will be set and lightly golden, and the edges may pull away slightly from the pan.
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Ready when: Toothpick comes out with a few moist crumbs, not wet batter; top is set and lightly golden
Tip: Check the cake at 35 minutes if your oven runs hot. The cake will look slightly underdone but will continue to set as it cools.
Cool and serve
- Remove the pan from the oven and let the cake cool in the pan for 10 minutes.
- Turn out onto a wire rack (or serve directly from the pan) and cool to room temperature, about 1 hour.
- Serve plain or topped with whipped cream, cream cheese frosting, or a simple molasses glaze.
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Ready when: Cake is no longer warm to the touch and crumb is tender but holds together
Tip: The cake continues to firm up as it cools and tastes even better the next day as flavors meld.
Good to know
Tips
- Use active sourdough discard that is bubbly and at peak rise (4–8 hours after feeding). Discard that is too young or too old will not leaven the cake effectively.
- Do not skip the rest before baking. This allows the sourdough culture to begin fermentation, which adds lift and subtle tang to the finished cake.
- The batter will be thin and pourable—this is correct. The hot water creates steam, which keeps the cake incredibly moist and tender.
- This cake improves with age. Flavors deepen and the crumb becomes more tender 1–2 days after baking. Store it covered at room temperature for best texture.
Make ahead
The batter can be mixed and rested up to 2 hours ahead, then baked when ready. The baked cake improves with age and keeps well for 3–4 days at room temperature.
Storage & reheating
Room temperature (covered): 3–4 days. Refrigerator (airtight container or wrapped): 5 days. Freezer (wrapped well or in airtight container): up to 2 months. Thaw at room temperature for 1–2 hours before serving. To reheat: warm a slice in the microwave for 20–30 seconds or in a 300°F (150°C) oven for 5 minutes until just warm.
Substitutions
- neutral vegetable oil → melted coconut oil or melted unsalted butter. Coconut oil adds subtle coconut flavor; butter enriches the crumb. Use the same amount.
- unsulphured molasses → dark honey or a mix of honey and unsulphured molasses (3 tablespoons molasses + 5 tablespoons honey). Honey will make the cake slightly lighter and less deep in flavor, but still delicious.
- ground ginger → 1½ tsp ground ginger + ½ tsp fresh ginger, finely grated. Fresh ginger adds brightness; reduce it if you prefer a gentler spice profile.
- active sourdough discard (unfed, bubbly) → 1 cup (240 ml) buttermilk or plain yogurt thinned with 2 tablespoons milk. The sourdough discard will be lost, but the tang and acid reactions will work similarly. The cake will be slightly less tangy.
