• Filling of choice: pastry cream, Nutella, jam, or custard
Instructions:
1. Activate the yeast: In a small bowl, combine lukewarm milk, sugar, and yeast. Let sit for 5–10 minutes until foamy.
2. Make the dough: In a large bowl (or stand mixer), mix flour, potato starch, and salt. Add egg yolks and the yeast mixture. Mix until it starts coming together, then knead in softened butter a little at a time until smooth and elastic (about 10–15 mins).
3. First rise: Cover and let the dough rise in a warm place until doubled, about 1–1.5 hours.
4. Shape: Roll out the dough to about ½ inch thick. Cut into rounds (use a cookie cutter or glass). Place on a floured tray, cover, and let rise again for 30–45 minutes.
5. Fry: Heat oil to 340–350°F (170–175°C). Fry a few donuts at a time until golden brown on both sides. Drain on paper towels.
6. Coat & Fill: While still warm, roll in sugar. Let cool slightly, then fill with your favorite cream using a piping bag.