½cupbutter, softened, cut into small chunks(113 grams)
Chocolate tahini filling
2cupsmilk(500 ml)
4large egg yolks
½cupgranulated sugar(100 grams)
2tablespoonscornstarch
2tablespoonscocoa powder
½teaspoonsalt
1teaspoonvanilla
5ouncessemi sweet chocolate chips(142 grams)
2tablespoonsbutter(28 grams)
⅓cuptahini(78 grams)
¾cupwhipped cream(188 ml)
Pistachio sugar
½cuppistachios(60 grams)
½cupgranulated sugar(100 grams)
Instructions
Make the dough. Combine active dry yeast with warm water, and 1 teaspoon granulated sugar. Let sit for 5 minutes or until the mixture is foamy and the yeast is activated.
Whisk together eggs with egg yolks. Combine eggs with bread flour, salt, and granulated sugar in the bowl of a stand mixer. Add yeast mixture and mix until a dough forms. Add the butter and knead the dough until smooth, about 5-7 minutes. Transfer the dough into a clean bowl and cover with plastic wrap. Place in a warm spot and let proof for 1 hour until doubled in size.
Meanwhile, make the chocolate tahini filling. Heat milk over low heat until warm. Whisk 4 egg yolks with sugar, cornstarch, cocoa powder, salt, and vanilla. Slowly add milk to eggs, whisking constantly. Do not add milk too quickly or the eggs will scramble. Heat egg mixture over medium heat on the stove and cook until thickened, whisking constantly.
Remove pastry cream from heat and stir in chocolate, tahini, and butter until melted. Transfer filling to a bowl and cover with plastic wrap, letting plastic wrap sit directly on top of the filling to prevent a skin from forming. Let cool. Fold in ¾ cup whipped cream and set aside.
Punch down dough. Roll into a rectangle about ¾ inch thick. Use a 3-inch biscuit cutter and cut 16 circles. Place on a baking sheet lined with parchment paper with 2 inches of space in between the donuts. Cover loosely with plastic wrap and let rise for 1 hour.
Make pistachio sugar. Grind pistachios in a food processor until finely ground. Make sure not to over-process the nuts or it will turn into pistachio butter. Combine ground pistachios with granulated sugar and set aside.
Heat frying oil to 350 degrees F.
Fry donuts until golden brown, flipping them over halfway. Remove from oil with a slotted spoon and place on a paper-towel-lined plate to drain the excess oil. Dip the donuts in the pistachio sugar and repeat with the remaining donuts.
Cut a small slit in the side of the donut and fill with chocolate tahini filling. Serve warm or at room temperature.