The perfect summer breakfast or brunch featuring fresh blueberries and a sweet cream cheese frosting!
Once you notice your dough has risen fully, and before you do anything with it, grease a large rectangular pan (at least 9x13 in size) with some butter.
Add the chopped blueberries to a large bowl and stir them together with the sugar and lemon zest just until combined. Spread the blueberry and sugar mixture evenly over the rectangle of dough.
Roll up the dough from the long side until you've got one long roll. Cut the long roll in half, then in half again, and then each of those sections into 3 pieces until you have 12 rolls. Try to cut the rolls to an even thickness as this promotes even baking. You don't want some rolls to be overdone and others to be raw in the middle.
Arrange the 12 pieces in the pan you've greased. An arrangement of 3 rows of 4 works well in a rectangular pan.
Once the rolls have risen for 20 minutes (no longer), place them in the oven to bake for about 40 minutes, or until they're a nice even light golden brown colour.
Remove the pan from the oven and let the buns cool in the pan for about 20-25 minutes.
While the buns are cooling, begin making the frosting by mixing the cream cheese and butter together until creamy and smooth. Add the vanilla, lemon zest and powdered sugar and mix by hand or with a hand mixer until light and fluffy.
Smooth the frosting over the buns while they're still slightly warm - this will let the frosting drip into the cracks slightly and create a beautiful presentation.
Sprinkle some additional blueberries and lemon zest over the top, and serve!
To make the day ahead (overnight rise instructions):
Prepare the dough and roll the buns the night before, placing them in the greased baking dish and covered with plastic wrap in the fridge to rise overnight. In the morning, place the COLD baking dish in a COLD oven. Let the buns rise as the oven preheats and slowly heats up the baking dish (placing a cold baking dish in a hot oven will cause it to crack and break). When the oven reaches 350 degrees Fahrenheit, bake according to the recipe directions.