Sift the flour into a large bowl. Make a well in the middle, crumble the yeast in, add one tablespoon of sugar and about half of the lukewarm milk. Cover with a clean kitchen towel and let rise for about 15 minutes.
Add the rest of the sugar, egg whisked with the remaining milk, butter and salt. Knead the dough with a large wooden spoon until it no longer sticks to the bowl. Leave the wooden spoon in, sprinkle a bit of flour on the dough, cover with the kitchen towel, and let rise in a warm place for about 30 minutes. Knead the dough again to incorporate air and let rise for another 30 minutes (or 60 minutes when making heavier dough like Easter bread). The dough will double in size. When you touch it, it should spring back.
Shape desired pastries and let them rise on a greased baking sheet (or a parchment paper or silicone mat) while preheating the oven. Brush them with an egg wash right before baking.
The oven should be preheated to 350°F for breads and 400°F for smaller pastries. After about 5-15 minutes (depending on the size of the product), lower the temperature to ensure even baking.
The pastry is done when golden brown. When making breads, insert a wooden skewer to make sure it’s baked through. Let it cool on a wire rack.