01 - Whisk together flour, granulated sugar, baking powder, salt, and nutmeg in a large bowl.
02 - In a separate bowl, whisk eggs, whole milk, melted butter, and vanilla extract until smooth.
03 - Gently fold wet ingredients into dry mixture until just combined, avoiding overmixing.
04 - Preheat vegetable oil to 350°F (175°C) to a depth of about 2 inches (5 cm) in a heavy-bottomed pot.
05 - Using a cookie scoop or spoons, carefully drop tablespoon-sized batter portions into hot oil in batches.
06 - Fry for 2 to 3 minutes per side, turning occasionally, until golden brown and fully cooked.
07 - Remove donut holes with a slotted spoon and drain briefly on a wire rack or paper towels.
08 - While warm, roll each donut hole generously in powdered sugar to coat evenly.
09 - Form a mountain shape by stacking coated donut holes on a serving platter.
10 - Present immediately alongside the optional chocolate sauce, raspberry jam, and custard or caramel sauces.