Make a well in the flour. Add the sugar, eggs, vanilla extract, and the yeast mixture into the center. Sprinkle the salt around the edge of the flour. Mix the ingredients together.

Knead the dough until smooth and uniform. Now comes the part that may seem tricky, but it's not: open up the dough and gradually add the softened butter in small pieces. The dough may seem very sticky, but keep kneading patiently until it becomes smooth and soft. The secret is in the kneading.

Shape each piece into a ball, then roll to make them oval or round. Place them on a baking sheet. Preheat the oven to 375°F (190°C). Use your finger to help join the rolls together so they stay close and retain moisture. Cover and let rise for 30 minutes, then brush with beaten egg. Bake for 15 to 20 minutes at medium-high heat.

You can enjoy these rolls plain—they have an amazing flavor and aroma—or serve them with cold cuts.