RASPBERRY-JAM DOUGHNUTS

Steps:

• Place yeast and 3/4 cup plus 3 tablespoons buttermilk in the bowl of an electric mixer. Add powdered milk and 2 cups flour. Let stand 3 minutes. Using paddle attachment, mix on low speed 30 seconds. Increase speed to medium high; mix until dough is smooth and comes together, 2 to 3 minutes; the dough will be very sticky.
• Sift an even layer of flour onto a clean work surface. Turn out dough, and gather into a ball. Clean and lightly oil mixer bowl. Transfer dough to oiled bowl; cover with plastic. Set aside in a warm place to rise until doubled in size, about 1 1/2 hours.
• Add remaining 5 tablespoons buttermilk, remaining 2 1/4 cups plus 2 tablespoons flour, sugar, salt, butter, nutmeg, cinnamon, and 8 egg yolks to yeast mixture. Mix on low speed until just combined, about 2 minutes. Increase speed to medium; beat until fully incorporated, about 3 minutes. Add 5 more egg yolks; mix on low speed 30 seconds. Increase speed to high, and beat 1 minute; dough will be very sticky.
• Lightly oil a large bowl. Sift a heavy coat of flour onto a clean work surface. Turn out dough. Sift another heavy layer of flour over dough. Gather dough into a smooth ball. Place in oiled bowl, cover, and set aside until doubled in size again, about 30 minutes.
• Heat oil in a low-sided six-quart saucepan over medium-high heat until a deep-frying thermometer registers 375 degrees. Lightly flour two baking pans, and line another one with paper towels; set pans aside.
• In a small bowl, whisk remaining 2 egg yolks; cover with plastic. Place jam in a bowl; whisk until smooth. Set both aside.
• Turn out dough onto a heavily floured work surface. Divide the dough into two equal pieces. Working quickly, roll one piece of dough, stretching as you roll, into a 12- by-14-inch rectangle, about 1/4 inch thick. Using the dull side of a 2 1/4-inch round doughnut cutter, score 15 circles, spaced 1/4 inch apart. Using a pastry brush, brush each marked circle with beaten egg. Place 1 teaspoon jam in middle of each circle.
• Roll out the second piece of dough as the first. Carefully roll dough around the rolling pin, and, lining up edges, unroll it directly over first. Using dull side of a 1 1/2-inch round doughnut cutter, gently press around each mound, sealing layers, being careful not to cut through dough. Using sharp side of a 2 1/4- inch-round cutter, cut out doughnuts, being careful to keep jelly centered and dipping cutter in flour before each cut. Transfer doughnuts to a floured pan. Using a 1-inch round cutter, cut holes out of remaining scraps; transfer holes to other floured pan. Allow doughnuts and holes to rest 15 minutes.
• Working in batches of four, carefully transfer doughnuts to oil. Cook until golden on bottoms, about 2 minutes. Using a slotted spoon, turn doughnuts over, and cook until golden all over, 2 minutes more. Transfer doughnuts to the lined baking pan. Repeat with remaining doughnuts and holes.
• When doughnuts and holes have cooled, roll in sugar, and serve.