Pastry cream (crema pasticcera), Nutella, jam, or dulce de leche
For Coating:
1 cup granulated sugar , for rolling
Step-by-Step Instructions
Step 1: Activate the Yeast
In a small bowl, combine the warm milk and yeast. Let it sit for 5–10 minutes , or until frothy.
Step 2: Make the Dough
In a large mixing bowl (or the bowl of a stand mixer), whisk together 3 cups of flour , sugar, and salt.
Add the activated yeast mixture, eggs, softened butter, and vanilla extract. Mix until a shaggy dough forms.
Knead the dough on a floured surface (or with a dough hook) for 8–10 minutes , gradually adding the remaining flour as needed, until the dough is smooth, elastic, and slightly tacky but not sticky.
Step 3: First Rise
Place the dough in a lightly greased bowl, turning it to coat all sides. Cover with a clean kitchen towel or plastic wrap.
Let the dough rise in a warm, draft-free area for 1–1.5 hours , or until doubled in size.
Step 4: Shape the Bomboloni
Punch down the risen dough to release air bubbles. Turn it out onto a lightly floured surface.
Divide the dough into 12–16 equal portions (about golf ball-sized). Roll each portion into a smooth ball.
Place the balls on a parchment-lined baking sheet, leaving space between them. Cover and let rise again for 30–45 minutes , or until puffy.
Step 5: Fry the Bomboloni
Heat vegetable oil in a deep skillet or pot to 350°F (175°C) . Use a candy thermometer to monitor the temperature.
Carefully fry the Bomboloni in batches, turning occasionally, for 2–3 minutes per side , or until golden brown. Avoid overcrowding the pan.
Transfer the fried Bomboloni to a paper towel-lined plate to drain excess oil, then immediately roll them in granulated sugar while still warm.
Step 6: Fill the Bomboloni
Once the Bomboloni have cooled slightly, use a piping bag fitted with a long, thin tip to inject your desired filling into the center of each donut. Insert the tip about halfway into the Bomboloni and gently squeeze until you feel the filling expand.