01 - Dissolve yeast and 1 tablespoon sugar in lukewarm milk. Let stand 5-10 minutes until foamy.
02 - In a large mixing bowl, whisk together flour, remaining sugar, salt, and lemon zest.
03 - Add yeast mixture, melted butter, eggs, and vanilla. Mix until a soft dough forms.
04 - Knead on lightly floured surface for 8-10 minutes until smooth and elastic. Add flour 1 tablespoon at a time if sticky.
05 - Place dough in greased bowl, cover, and let rise in warm place until doubled, approximately 1 to 1.5 hours.
06 - Punch down dough and divide into three equal portions. Roll each into a 16-inch rope.
07 - Braid ropes together and form into a ring or leave as straight braid. Transfer to parchment-lined baking sheet.
08 - Gently tuck raw colored eggs into the braid, spacing evenly. Do not press deeply.
09 - Cover loosely and let rise for 30-45 minutes until puffy.
10 - Preheat oven to 350°F.
11 - Brush bread with egg wash, avoiding colored eggs. Sprinkle with colored sprinkles if desired.
12 - Bake for 25 minutes until golden brown and cooked through. Tent with foil if browning too quickly.
13 - Transfer to wire rack and cool completely before serving.