In a small bowl, combine the warm milk, yeast, and sugar. Let sit and foam for about 5 minutes.

In a stand mixer bowl, add flour, sugar, salt, egg yolks, vanilla extract, and the activated yeast mixture. Knead for at least 10 minutes until the dough forms a ball and pulls away from the bowl.

Slowly add the softened butter until fully incorporated. Knead for an additional 12-15 minutes until the dough is smooth and not sticky.

Place the dough in an oiled bowl, cover, and let rise for at least 1 hour.

In a pan over medium heat, add butter and brown sugar. Once melted, add the diced apples and spices, cooking until tender. Set aside to cool.

In a bowl, mix softened cream cheese, granulated sugar, and vanilla extract until smooth.

For the crumble topping, melt butter, then mix in brown sugar, cinnamon, and flour until combined. Let cool to room temperature.

Prepare a large baking sheet lined with parchment paper. After the dough has risen, divide into 10 equal pieces and roll each into a ball. Transfer to a baking sheet, cover with plastic wrap, and let rise for 30-45 minutes.

Preheat oven to 375?F.

After the second rise, create an indent in each bun, fill with sweet cream cheese, top with apple filling, and sprinkle with crumble topping.

Brush the sides with egg wash or milk.

Bake for 15-18 minutes until golden brown. Let cool for at least 5 minutes before dusting with powdered sugar.