1. Prepare the Dough
In a large bowl, mix egg white, warm milk, and water. Add flour, yeast, sugar, and salt, and stir until combined. Transfer to a floured surface and knead for 10 minutes until soft and smooth.
2. Let the Dough Rise
Place the dough back in the bowl, cover, and let it rise in a warm spot for about 1.5 hours, until doubled in size.
3. Shape and Fill the Buns
Punch down the dough and divide into 12 pieces. Flatten, fill, and seal each. Place on a parchment-lined sheet, then let rest for 20 minutes while preheating the oven to 350°F.
5. Brush and Bake Pogaca
Whisk egg yolk and olive oil in a small bowl. Brush the buns, then bake for 20 minutes until golden and cooked through.
6. Cool and Serve
After baking, cool the buns slightly on a wire rack. Serve warm for the best texture and flavor. Perfect alone or with dips and spreads.