01 - Combine lukewarm milk with 1 tablespoon sugar and yeast in a small bowl. Let sit for 5–10 minutes until foamy.
02 - Whisk flour, remaining sugar, and salt in a large mixing bowl. Add yeast mixture, melted butter, eggs, vanilla, and citrus zest.
03 - Mix until soft dough forms. Knead on floured surface for 8–10 minutes until smooth and elastic.
04 - Place dough in greased bowl, cover, and let rise in warm place for 1–1.5 hours until doubled.
05 - Punch down dough and divide into 3 equal pieces. Roll each into a 16-inch rope.
06 - Braid ropes together and form into a ring or leave straight. Pinch ends to seal.
07 - Transfer braid to parchment-lined baking sheet. Nestle dyed eggs evenly into braid. Cover and rise 30–45 minutes.
08 - Preheat oven to 350°F.
09 - Mix egg yolk with milk. Brush bread avoiding colored eggs. Add sprinkles if desired.
10 - Bake for 28–32 minutes until golden brown and cooked through. Tent with foil if browning too quickly.
11 - Cool on wire rack before serving.