Activate yeast. Combine warm water, yeast and 1 tsp. of sugar in small bowl. Stir and let sit for 10 minutes. Yeast should be bubbly and have doubled in size.
In a large bowl, stir together milk, melted shortening, salt and the egg yolk. Stir in yeast mixture. Add 1 cup of sifted bread flour at a time until 3 cups are added. Stir until a sticky dough starts to form.
Sprinkle the remaining ⅓ cup bread flour on a hard work surface, turn the dough out onto the surface and knead for 10-12 minutes. Dough will be sticky and elastic. Transfer dough into a lightly greased bowl, cover and let rise in a warm place for 1 hour.
Shaping and Filling Dough
Punch dough down. Roll into a log and cut into 12 equal size pieces, approximately the size of golf balls (2 oz. each). Place dough ball in a lightly greased half sheet pan (13” x 18”) and brush with 1 tbsp. of melted butter. Cover and let rise for 30 minutes.
Make wells in the center by pressing a lightly floured ¼ c. measuring cup into the center of each dough ball. Fill each dough ball with 1 Tbsp. of cream cheese filling. Brush sides with more melted butter. Cover and let rise for ~ 30 minutes-1 hour.
After dough has risen, spoon 1-2 tsp. of fruit filling into center of cream cheese filling. Sprinkle with streusel topping.
Bake at 350 F for 25-30 minutes or until golden brown.
Cream Cheese Filling
In a high speed mixer, whisk together cream cheese, sugar, egg yolk and vanilla extract for 1-2 minutes or until creamy.
Streusel Topping
In a medium bowl, combine flour, sugar, salt, cinnamon. Cut butter into dry mixture until coase crumbles form.
Notes
*Milk should not be cold, either room temperature or slightly warm. Lemon Cream Cheese: Add lemon juice or zest to the cream cheese filling for a lemon cream cheese filling.Stand Mixer MethodIf you prefer to use a stand mixer, follow these adjusted steps to keep the dough from becoming too soft or greasy:
Step 1: In the mixer bowl, combine the activated yeast mixture, sugar, milk, salt, egg yolk, and 3 cups of the sifted bread flour. Mix with the paddle attachment on low until a shaggy dough forms.
Step 2: With the mixer on low, slowly stream in your lukewarm melted butter or shortening. Mix for 60 seconds until completely absorbed.
Step 3: Switch to the dough hook and turn the mixer to speed 2. Gradually add the remaining ⅓ cup of bread flour one tablespoon at a time.
Step 4: Knead on speed 2 for 6–8 minutes until the dough looks smooth, elastic, and cleanly clears the sides of the bowl. Proceed to the first rise as directed.