Mix all dry ingredients together, making sure baking powder is thoroughly mixed.
Add eggs and sour cream.
Melt butter in cast iron skillet in oven until butter is bubbly.
Pour mixture into pan and shut oven.
Bake 13 minutes until the center is springy.
Take out. Add cheddar cheese. Bake five more minutes, until cheese is melted.
Once melted, add chopped bacon and sliced scallions.
Serve with toppings such as avocado, sour cream, jam.
Notes
If you have medium to large eggs, use 4 eggs. This recipe contains Amazon affiliate links, which earn a commission toward operating costs, but do not increase your price.