Chocolate chip muffins

Ingredients list:

• 150g of soft butter.
• ½ teaspoon of vanilla extract.
• 340g chocolate chips.
• 4 medium eggs.
• 1 cup of sugar.
• 1 tablespoon of baking powder.
• ½ teaspoon of salt.
• ¼ cup of milk.
• 2 ½ cups of flour.

Instructions:

1. Preheat your oven to 400°F (200°C) and butter your muffin pan.
2. Beat the butter and the vanilla extract together to form a light, airy mixture.
3. One at a time, add the eggs, and beat gently, adding ¼ cup of the sugar after each egg and mix thorougly.
4. Put the baking powder and salt in the milk, then add to the mixture.
5. Fold in the flour and the chocolate chips.
6. Pour the mix into your buttered muffin pan, filling each cup two-thirds full.
7. Bake for 25 minutes or until muffins turn golden brown.

(http://www.muffinrecipes.net/chocolate-chip-muffins.html)