INGREDIENTS
3 cups
all-purpose flour, plus more for the work surface
1 tbsp
instant or active dry yeast
1/4 cup
sugar
1 1/4 tsp
salt
1 1/4 cups
whole milk, cold
2 tbsp
unsalted butter room temperature
24 tbsp
cold, European-style butter (like Plugra) cut into 1-tablespoon pieces
2 tbsp
all-purpose flour
1
large egg, lightly beaten
Flaky Sea Salt (optional)