Put the yeast and sugar in warm milk and dissolve, then stir. Let it sit for 10 minutes. The yeast should foam up.

Add the paddle attachment to your mixer and mix in one cup of flour. Put in the butter and one more cup of flour. Mix.

Put in the eggs, the rest of the flour, and the salt and mix.

Form the dough into a ball and put it into a greased bowl. Turning to grease the top. Cover with plastic wrap for 1 hour.

Preheat the oven to 350 degrees.

Take the dough and put it on a floured surface then roll it out to a 18X15 rectangle. Spread on blueberry jam and top with blueberries. Sprinkle with lemon zest.

Roll starting at the long end but don't make it too tight. Pinch the seam to seal and then turn it seam side down.

Slice lengthwise to make two pieces. Twist each piece around each other and keep the side that is cut, up. Spray a cast iron skillet with cooking spray and put the dough in the pan, tucking the ends under.

Put in the oven and bake for 35 minutes at 350 degrees.

Take out the bread and let it cool in the pan.

Mix the lemon juice and powdered sugar and drizzle on the top.