Blueberry muffins (adapted from Ina Garten) - chinese grandma

Ingredients

• 12 tablespoons (1 1/2 sticks) butter, at room temperature
• 1 1/2 cups sugar
• 3 eggs, at room temperature
• 1 1/2 teaspoons pure vanilla extract
• 1 cup sour cream or Greek yogurt (or 1 1/4 cup plain yogurt and skip the milk)
• 1/4 cup milk
• 2 1/2 cups all-purpose flour
• 2 teaspoons baking powder
• 1/2 teaspoon baking soda
• 1/2 teaspoon kosher salt or 1/4 teaspoon table salt (skip if using salted butter)
• 2 half-pints fresh blueberries, picked through for stems