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Sourdough German Chocolate Brownies

Sourdough German Chocolate Brownies

Imagine the fudgiest, glossiest brownie you’ve ever had — now add sourdough discard for depth and chew, melty chocolate throughout, and a gooey coconut-pecan custard on top. It’s a love letter to German chocolate cake with a rebellious brownie twist. Nostalgic, indulgent, and oh-so good.
Prep Time 30 minutes
Servings 9

Equipment

  • 9x9 baking pan
  • Parchment paper to line pan
  • 2 Medium sized pots
  • 2 Mixing bowls
  • Whisk
  • Spatula
  • Hand mixer optional

Ingredients
  

Sourdough German Chocolate Brownies

Wet Ingredients:

  • 3/4 cup (170g) unsalted butter
  • 2/3 cup (113g) semi-sweet chocolate chips
  • 1/2 cup (42g) Dutch-process cocoa powder
  • 1/2 teaspoon espresso powder optional
  • 1 1/2 cup (300g) granulated white sugar
  • 1/4 cup (50g) brown sugar, packed
  • 1/2 cup (120g) sourdough discard 100% hydration, unfed or past peak
  • 3 (150g) large eggs
  • 1 teaspoon vanilla extract

Dry Ingredients:

  • 1 cup (125g) all-purpose flour
  • 1 teaspoon (5g) sea salt
  • 1 cup (175g) semi-sweet chocolate chips for folding in

German Chocolate Frosting:

  • 1/2 cup (113g) unsalted butter
  • 1 cup (200g) brown sugar
  • 3 (54g) egg yolks
  • 1 cup (240g) evaporated milk do not substitute with sweetened condensed milk
  • 1 teaspoon vanilla extract
  • 1/8 teaspoon sea salt
  • 1 1/2 cups (135g) shredded sweetened coconut
  • 1 1/2 cups (150g) chopped pecans

Chocolate Drizzle (optional):

  • 1/4 cup semi-sweet chocolate chips
  • 2 teaspoons organic coconut oil

Instructions
 

Mix Brownie Batter:

  • In a saucepan, melt the butter and 2/3 cup (113g) semi-sweet chocolate chips. Once mixture is melted completely, whisk in cocoa powder and espresso powder.
    3/4 cup (170g) unsalted butter, 2/3 cup (113g) semi-sweet chocolate chips, 1/2 cup (42g) Dutch-process cocoa powder, 1/2 teaspoon espresso powder
  • Pour the chocolate mixture into a large bowl and allow to cool slightly. Add sourdough discard, white sugar, brown sugar and vanilla to chocolate mixture. Whisk or mix on low with hand beaters to combine.
    1 1/2 cup (300g) granulated white sugar, 1/4 cup (50g) brown sugar, packed, 1/2 cup (120g) sourdough discard, 1 teaspoon vanilla extract
  • Add in eggs and mix into batter.
    3 (150g) large eggs
  • Add flour, salt, and chocolate chips to the batter and fold or mix until batter is just combined and no flour streaks remain. Be careful not to overmix brownie batter.
    1 cup (125g) all-purpose flour, 1 teaspoon (5g) sea salt, 1 cup (175g) semi-sweet chocolate chips

Long Ferment Option:

  • Cover bowl with plastic and refrigerate overnight for optimal fermentation. Remove from refrigerator and allow batter to rest 30 minutes to warm up slightly before transferring to pan.

Bake Brownies:

  • Preheat oven to 350 F (175°C). Line a 9x9-inch pan with parchment paper and lightly spray with cooking oil.
  • Bake brownie at 350°F (175°C) for 32–36 minutes, until edges are set and center has moist crumbs.
  • Cool brownie completely before frosting. While brownie cools, prepare frosting.

Make German Chocolate Frosting:

  • In a medium pot over medium heat, whisk together butter, brown sugar, egg yolks, vanilla, and evaporated milk.
    1/2 cup (113g) unsalted butter, 1 cup (200g) brown sugar, 3 (54g) egg yolks, 1 cup (240g) evaporated milk, 1 teaspoon vanilla extract, 1/8 teaspoon sea salt
  • Cook mixture whisking constantly over medium heat for ten minutes. If pot starts to boil over, lower heat slightly. Mixture should be thickened and caramelly.
  • Remove custard from heat and stir in shredded sweetened coconut and chopped pecans.
    1 1/2 cups (135g) shredded sweetened coconut, 1 1/2 cups (150g) chopped pecans
  • Allow frosting to cool slightly for about ten minutes, then spread evenly over cooled brownies.
  • Refrigerate frosted brownie to allow frosting to set up completely- at least two hours.
  • If desired, melt 1/4 cup additional chocolate chips in microwave safe dish with 2 teaspoons coconut oil for 30 seconds. Stir until smooth and drizzle over top of brownie. Allow to chill to set.
    1/4 cup semi-sweet chocolate chips, 2 teaspoons organic coconut oil
  • Once frosting has completely set up, remove brownies gently with parchment paper from pan and slice to serve. Enjoy!

Notes

FAQ's:

Can I long-ferment the batter?
Yes! It enhances the chocolate complexity. Chill it covered for up to 16 hours before baking.
Can I make the frosting ahead of time?
Totally. Store up to 3 days in the fridge — just bring to room temp before spreading.
Can I double the recipe?
Absolutely. Use a 9x13-inch pan and bake for 40-45 minutes or edges are set.
Can I freeze these?
Unfrosted: yes, up to 2 months. Frosted: okay for 1–2 weeks if tightly wrapped (texture will soften).
Should I toast the pecans?
You can! But it isn't necessary.
Yields 9 brownies
 
Course Bars and Brownies
Cuisine Sourdough Desserts