100gramsWhole MilkActivates the yeast; substitute with any non-dairy milk if needed.
200gramsSourdough DiscardEnsure it’s bubbly and active for optimal results.
60gramsGranulated SugarAlternatives like coconut sugar can be used for a different flavor.
9gramsInstant YeastActive dry yeast can be substituted but activation time may vary.
1Large EggA flax egg can be used for a vegan option.
80gramsUnsalted Butter, meltedUse margarine for a dairy-free version.
8gramsSaltEssential for balanced taste.
375gramsBread FlourReserve 60 grams for kneading.
750mlCoconut OilFor frying; can substitute with vegetable or canola oil.
For the Glaze
270gramsPowdered SugarSweetens the donuts; use sugar alternatives if needed.
65gramsWhole MilkNon-dairy milk can be swapped here too.
5gramsVanilla ExtractRecommended for optimal flavor.
Pinch of SaltEnhances glaze flavor.
Assorted SprinklesOptional for decorative flair.
Instructions
How to Make Delicious Sourdough Donuts
Warm the whole milk gently, then mix with the sourdough discard and granulated sugar. Sprinkle in the instant yeast and let it sit until foamy, about 5-10 minutes.
Add the large egg, melted unsalted butter, salt, and 315 grams of bread flour to the yeast mixture. Mix until a shaggy dough forms.
Transfer the dough onto a floured surface and knead for 8-10 minutes, or until it becomes smooth and elastic. Incorporate reserved flour as needed.
Place the kneaded dough into a greased bowl, cover it with a kitchen towel, and let it rise in a warm spot until doubled in size, about 1-2 hours.
Roll the risen dough into a rectangle about 10" x 16". Use a donut cutter to cut out 12 donuts along with holes.
Arrange the shaped donuts on a parchment-lined baking sheet, cover them with a towel, and let them rise again until doubled, about 30-45 minutes.
Heat the coconut oil in a deep pot to 350ºF. Fry 2-3 donuts at a time for 1-2 minutes, flipping halfway through.
Whisk together the powdered sugar, whole milk, vanilla extract, and a pinch of salt until smooth. Dip the cooled donuts into the glaze.
Notes
For optimal flavor, consider adding a sprinkle of cinnamon to the glaze. Store in an airtight container.