Don’t have buttermilk? You can substitute the 1/2 cup of buttermilk called for in the recipe with a 1/2 cup of milk to which has been added 1 1/2 teaspoons of vinegar or lemon juice (let sit for several minutes). Or you can mix in 1/4 cup of plain yogurt with 1/4 cup of milk.
1 Whisk together the dry ingredients in a large bowl. In a separate bowl, whisk the eggs, then whisk in the milk, and buttermilk. Pour the wet ingredients into the dry ingredients and combine, using a wooden spoon. Mix only until the batter just comes together. Stir in the melted butter. Do not over-mix! The mixture should be a little lumpy. Lumpy is good. A lumpy batter makes fluffy pancakes.
At this point you can either gently fold in the blueberries, or wait until you pour the batter onto the griddle, and then place the blueberries into the surface of the pancake batter. Placing the blueberries into the pancakes while they are cooking will help keep them from bleeding.
2 Heat a griddle or large pan on medium to medium high heat. (A large cast iron pan works great for cooking pancakes.) Oil the pan with either a little butter or vegetable oil. Ladle the pancake batter onto the griddle to the desired size (a quarter-cup measure works well for this), anywhere from 4 to 6 inches wide. If you haven’t already added the blueberries to the batter, you can place several in each pancake while it cooks.
3 When air bubbles start to bubble up to the surface at the center of the pancakes (about 2-3 minutes), use a flat metal spatula to flip them over. After a minute, peek under one for doneness. When golden or darker golden brown, they are done. Note that cooking the second side takes only about half as long as the first side. And the second side doesn’t brown as evenly as the first side. Continue to make the batches of pancakes, putting a little oil or butter on the pan before each batch so the pancakes don’t stick.
Serve immediately. Serve with butter, maple syrup, and extra blueberries.