Preheat the oven to 375F. Ready a 9" cast iron skillet or an oven proof Dutch oven. You'll need two sheets of parchment paper as well.
In a large mixing bowl, whisk together the low carb flour, Swerve, baking soda, baking powder, and salt.
4 cup Impact KETO Wheat Flour, 2 tablespoon Swerve, 1 teaspoon Baking soda, 1 tablespoon Baking powder, ½ teaspoon Salt
Cut the butter into the low carb flour until completely mixed into a somewhat coarse textured, sandy mixture.
½ cup Butter
Add the buttermilk and the egg to the flour. Mix the egg and butter milk together, adding the low carb flour to the mixture as you stir. Continue mixing until the flour is completely blended in. Depending on the brand of keto or low carb flour, you nay need up to ¼ cup more buttermilk.
1¼ cup buttermilk, 1 large Egg
Turn out the dough on a lightly floured surface and knead lightly, folding the dough over about four time, and shape into a round loaf.
Lay the two pieces of parchment paper over each other in opposite directions and place the ball of dough in the middle.
Using a long sharp knife, score a 1" deep X across the top of the dough. Carefully lift the dough ball by the parchment paper and set into the Dutch oven, or in the cast iron skillet.
Brush the mixture the top of the scored soda bread with the heavy cream, being generous. You'll use about half.
¼ Heavy cream
Bake the bread for about 50 minutes, basting with the remaining cream halfway through the baking process.
Allow the soda bread to cool before slicing or cutting into wedges and serving.