In the bowl of a stand mixer, combine the cooled tangzhong, 2 cups (270 grams) of the flour, salt, sugar, and instant yeast. Add the softened butter, warm milk and the egg and stir to make very soft dough.

Set the bowl on the mixer stand and begin kneading with the dough hook. Add the reserved flour 2 tablespoons at a time while the machine kneads. Stopping and scraping bowl after every flour addition. Add the flour until the dough no longer clings to the side of the bowl. You probably won’t need all of the extra flour, so do it gradually. Keep kneading until smooth and elastic. The dough should be very smooth, easy to handle and neither too sticky nor too dry.

Rub an empty mixing bowl with butter or slick with oil, put the dough in it, cover and let rise until doubled in bulk, about 1 ½ hours

Turn the dough onto a pastry mat. If it’s oily, you shouldn’t need any extra flour at this point, but if for some reason it is sticky you can flour the mat. Punch into kind of a rectangle and cut into 6 equal squarish things. Shape each into a ball by turning down and tucking the corners. Arrange about an inch apart in a well greased 9x13 inch pan.

Spray a piece of plastic wrap with cooking spray, cover loosely and let rise for an hour.

While rising, mix together ingredients for the Posypka Topping and the cream cheese filling.

Also, preheat oven to 400 degrees F. If you’d like to use a steamy oven (sometimes helps with rise and soft crust), put an empty cast iron skillet on the bottom rack.

Make an indentation in each risen ball and fill with filling. Brush with a little melted butter. Sprinkle with posypka topping. Let rise for about 10 minutes or so.

Once the oven is preheated, put on an oven mitt and carefully pour about 2 or 3 cups of cold water into the hot skillet to make a steamy oven. You can skip this step if you want.

Bake Kolaches at 400 degrees for 10 minutes, then reduce heat to 350 and continue baking for another 10-15 minutes or until nicely browned and baked through.

Posypka Directions: In a small bowl, mix together flour, sugar and salt. Add butter in small chunks and work it in with your fingers to make a powdery streusel.

Cream Cheese Filling – Mix together softened cream cheese and sugar, then drizzle in egg yolk. Mix well and add lemon zest and vanilla.