A moist, warmly spiced pumpkin loaf made with sourdough discard. Tender crumb with a subtle tang and a golden crust—perfect for using leftover starter.
Preheat oven to 350°F (175°C). Grease and line a 9x5-inch loaf pan.
In a large bowl, whisk sourdough discard, pumpkin, both sugars, eggs, oil, and vanilla until smooth.
In another bowl, whisk flour, baking soda, baking powder, salt, and spices. Fold dry into wet until just combined. Stir in nuts if using.
Pour batter into pan, sprinkle with coarse sugar if desired, and bake 55–65 minutes until a toothpick comes out with moist crumbs. Tent with foil if top browns too fast.
Cool in pan 15 minutes, remove using parchment, and cool completely on a rack before slicing.
Notes
You can use refrigerated discard; no need to revive unless it's very thin.
For muffins, bake 18–22 minutes. For mini loaves, bake 30–35 minutes.