Preparing the Dough
Mix warm milk, sugar, and yeast. Let sit 5-10 minutes until foamy.
Add eggs, melted butter, vanilla, and salt. Mix well.
Slowly mix in flour. Dough pulls from bowl sides when ready.
Knead on floured surface 5-7 minutes until smooth and elastic.
Perform window pane test to check readiness.
Dividing and Shaping the Dough
Place dough in greased bowl, cover, and let rise 1 hour.
Punch down dough and roll out to ½-inch thick.
Cut with 3-inch and 1-inch cutters (or use glasses/caps).
Shape into balls for filled donuts if desired.
Proofing the Donuts
Place donuts on parchment-lined sheets with space in between.
Cover loosely and let rise 30–45 minutes in warm place.
Use oven light or warm environment for proofing.
Check readiness with finger indentation test.
Frying the Donuts
Heat 2-3 inches of oil to 350°F in heavy pot.
Fry 2–3 donuts at a time, 1–2 minutes per side.
Let drain on paper towels over cooling rack.
Glazing
Dip warm donuts in glaze, top side only.
Twist gently, let excess drip off, place on wire rack.