Warm the milk, add yeast and sugar. Stir and let sit for ten minutes.
Add the egg yolks, flour, salt and butter to the mixing dough.
After 10 mins add the yeast mixture and mix on medium speed for 15 mins.
Carefully remove the dough and roll out on a lightly floured surface.
Knead the dough just a little until smooth and in a ball shape.
Add oil to a bowl, place the dough on top and then cover with a towel. Place in a warm area (ie on the back burner of the oven while its on warm). Let rise for 1 hour.
Preheat the oven to 350.
After one hour, pat down the dough, lightly knead it and then separate it into 10-12 balls. Place the balls on parchment lined baking sheets (no more than 6 dough balls per sheet) Create a well with the bottom of a sturdy glass OR use a rounded measuring spoon. Brush with egg wash (1 egg + 1 teaspoon water).
Fill the center with the cream cheese filling, Strawberry Jam or preserves.
Top with crumble.
Bake for 18-20 mins.