Got sourdough discard? Good. You’re about to make the most unfairly moist chocolate cake of your life. The starter doesn’t add sourdough flavor—it adds tenderness, depth, and a secret-weapon richness that boxed mixes can only dream of. This cake is fudgy, deeply chocolatey, and dangerously easy.
Prep
Preheat oven to 350°F (175°C). Grease a 9-inch round pan or line a loaf pan with parchment.
Wet Mix
In a large bowl, whisk together sourdough discard, sugar, oil, eggs, and vanilla until smooth.
Dry Mix
Sift in flour, cocoa powder, baking soda, and salt. Stir until just combined (don’t overmix).
Hot Liquid
Pour in hot coffee or water. Mix gently—batter will be thin. That’s correct.
Bake
Pour batter into pan. Bake 30–35 minutes (round) or 45–50 minutes (loaf), until a toothpick comes out clean.
Cool & Serve
Cool in pan 10 minutes, then transfer to a rack. Dust with powdered sugar or glaze as desired.
Summary
Prep Time: 10 min | Bake Time: 35 min | Total: 45 min
Yield: 8–10 slices | Difficulty: Easy
Storage Notes
- Counter: 3 days in an airtight container.
- Fridge: 1 week.
- Freezer: 3 months (wrap tightly).
The cake gets more moist and chocolatey on day two. You’re welcome.
