Preheat the oven to 475 degrees. Place your cast iron skillet in the oven while it is heating to preheat the skillet.
In a large bowl mix heavy whipping cream with the dry ingredients sugar and self rising flour together using a wooden spoon.
In a separate small bowl toss the blueberries with a few tablespoons of flour to coat. This step is optional, but keeps the entire dough from turning blue.
Add the blueberries to the dough and mix until just combined.
On a lightly floured surface turn out the biscuit dough. Using a rolling pin or your hands, roll the dough out to a 1 inch thickness.
Use a biscuit cutter or the rim of a jar to cut out biscuits from the dough. Be sure to press straight down and not twist the cutter as you cut the dough. Twisting the cutter seals the edges of the dough and makes it harder for the biscuits to rise.
Continue to reshape and roll the leftover dough as you cut out biscuits, making sure to use all of the dough.
Safely remove the hot skillet from the oven and begin placing biscuits in the bottom of the skillet in a circle making sure the sides of the biscuits touch. This will help the biscuits to rise even more as they bake.
Bake the blueberry biscuits at 475 for 10-12 minutes or until the top of the biscuits are golden brown.
Slather the tops of the biscuits with melted butter or take a stick of butter and rub the top of each of the warm biscuits.
Serve warm biscuits with additional butter and your favorite jelly.