Baking soda is pure sodium bicarbonate and creates CO2 when it mixes with an acidic liquid, like the buttermilk ... low heat and brush with a bit of oil. Pour the batter onto the skillet or griddle ...

Make sure the pan is hot; low-medium or medium heat works well on most stovetops. Also remember to wipe the pan clean between every 2-3 pancakes to keep the residual butter from burning. Buttermilk ...