Perfectly Fluffy Pancakes Every Time! Simple & Delicious!

Ingredients for pancakes: - 2/3 cup (160 ml) milk - 2 tablespoons (30 ml) lemon juice or white vinegar - 1 cup (130 g) all-purpose flour - 2 tablespoons (30 g) sugar - 1 teaspoon (4-5 g) baking powder - ½ teaspoon (2-3 g) baking soda - pinch of salt - 1 egg - 2 tablespoons (25 g) melted butter Ingredients for blueberries sauce: - 1 cup (150 g) blueberries - 2 tablespoons (30 g) sugar - 3 tablespoons (45 ml) water - 1 teaspoon (5 g) cornstarch dissolved in a little water