Classic Chocolate Chip Muffins

Ingredients

• 2 1/2 cups (300g) all-purpose flour (plain flour)
• 1 cup (200g) granulated sugar
• 1 tbsp baking powder
• 1/2 tsp baking soda
• 1/4 tsp salt
• 1 cup (240ml) milk
• 1/2 cup (120ml) vegetable oil (or melted unsalted butter, slightly cooled)
• 1/4 cup (60ml) sour cream
• 2 large eggs
• 1 tsp vanilla extract
• 1 cup (170g) semi-sweet chocolate chips (or dark chocolate, roughly chopped)