From Martha Stewart

Heat griddle to 375 degrees.
Whisk together flour baking powder baking soda salt and sugar in a medium bowl.
Add egg buttermilk and 2 tablespoons butter; whisk to combine. (Batter should have small to medium lumps.)
Heat oven to 175 degrees. Test griddle by sprinkling a few drops of water on it. If water bounces and spatters off griddle it is hot enough. Using a pastry brush brush remaining 1/2 teaspoon of butter or reserved bacon fat onto griddle. Wipe off excess.
Using a 4-ounce ladle about 1/2 cup pour pancake batter in pools 2 inches away from one other. Scatter with berries if using.
When pancakes have bubbles on top and are slightly dry around edges about 2 1/2 minutes flip over. Cook until golden on bottom about 1 minute.
Repeat with remaining batter keeping finished pancakes on a heatproof plate in oven. Serve warm.