Gather all the ingredients you need.
Preheat the oven to 400.
In a large bowl add flour, salt, and baking powder. Stir all the ingredients together.
Add sugar, butter, milk, and vanilla to another bowl. Mix all the ingredients.
In a small bowl crack the eggs and whisk them well.
Add the eggs to your wet mixture. Mix all the ingredients well.
Add the wet mixture into the dry mixture and stir all the ingredients together. Your batter will be very thick. Don’t overmix the batter.
Wash the blueberries and drain out all the water. Add the blueberries to your batter and stir around.
Line a muffin pan with muffin liners.
Take a spoon and fill the muffin liners with batter all the way to the top.
Place the muffins in the oven and bake for 20 minutes. To check if done insert a toothpick in the center and see if it comes clean.