16 ounces apples – peeled, cored, and diced 0.5-inch
1 tbsp lemon juice
0.25 cup brown sugar
1 tsp ground cinnamon
1 tbsp unsalted butter
0.5 cup all-purpose flour – for dusting
64 ounces vegetable oil – for deep-frying
2 cups confectioners' sugar
0.25 cup whole milk
1 tsp vanilla extract
Instructions
Bloom the yeast: In a large bowl, whisk the warmed whole milk and granulated sugar, then sprinkle the active dry yeast over the top. Let stand until foamy, 5–10 minutes.
Make the dough: Add the all-purpose flour (3.25 cups), kosher salt, ground cinnamon (1 tsp), and ground nutmeg to the bowl. Add the eggs and the melted and cooled unsalted butter. Mix until a shaggy dough forms, then knead on a lightly floured surface or with a mixer on medium speed until smooth, elastic, and slightly tacky, 6–8 minutes. Place in a lightly oiled bowl, cover, and let rise until doubled, about 60–75 minutes.
Cook the apples: Meanwhile, melt the unsalted butter (1 tbsp) in a skillet over medium heat. Add the diced apples, brown sugar, lemon juice, and ground cinnamon (1 tsp). Cook, stirring, until the apples are just tender and the juices are syrupy, 6–8 minutes. Spread on a plate to cool completely, 20–30 minutes.
Make the glaze: In a bowl, whisk the confectioners' sugar, whole milk (0.25 cup), and vanilla extract until smooth and pourable. Set aside.
Heat the oil: Pour the vegetable oil into a heavy pot to a depth of 2–3 inches and heat to 350°F over medium heat; maintain 340–350°F during frying.
Shape the fritters: Turn the risen dough onto a work surface dusted with some of the all-purpose flour (0.5 cup, for dusting). Pat into a roughly 12×8-inch rectangle about 0.5 inch thick. Spread the cooled apples over half the dough, fold the other half over the apples, and press to enclose. Use a bench scraper to cut into 12 rough pieces, then gently press each into a 3–4 inch, 0.75 inch-thick round, pinching in loose apples.
Proof: Transfer the shaped fritters to a floured parchment-lined sheet. Cover and let puff until slightly risen and airy, 20–30 minutes.
Fry: Fry 2–3 fritters at a time until deep golden brown, 2–3 minutes per side, turning once; the centers should reach about 195°F and feel set. Adjust the heat to keep the oil around 350°F.
Glaze and set: Drain fritters briefly on a rack, then dip or spoon the glaze over both sides while warm. Let the glaze set 10 minutes.
Serve warm the day they are made for best texture.