1)First step, dry ingredients

1. In a large bowl whisk together all purpose flour, sugar and baking powder until well combined.

2)Second step, wet ingredients

1. In a separate bowl, whisk the eggs, oil, milk and vanilla extract until they are homogeneous.

3)Third step, mix them together

1. Now, pour the wet ingredients into the dry ingredients, using a spatula fold them together gently. Mix just unfurl incorporated to avoid overworking the batter which can lead to tough muffins.

4)Forth step, Brown the butter

1. Place the butter in a medium sized pan for even melting. Heat the butter over medium flame stirring gently but continuously with a silicone spatula. Observe closely as it transitions from a pale yellow to a deep golden brown color. You’ll notice a distinct nutty aroma. Let it cool slightly before using.

5)Fifth step, Butter with sugar

1. In a mixing bowl, combine the brown sugar with the butter, whisk for about 4 minutes or until the mixture is creamy and throughly blended.

6)Sixth step, Toast flour

1. Place all purpose flour and dry milk powder in a dry skillet, toast over medium low hear stirring often to prevent burning until it achieves a light golden color. After toasting, sift the flour to eliminate any clumps and ensure an even texture.

7)Seventh step, cookie dough

1. gradually add the toasted flour with the milk powder, milk and combine until smooth. Once the cookie dough is not hot anymore you can add chocolate chips if you want . Preheat the oven at 210 C ( 410 F ).

8)Eight step, bake

1. Line a muffin tin with paper liners, fill each liner halfway with the muffin batter and place small balls of the prepared cookie dough on each cup. Add more batter and cookie dough on top until you reach the top. Sprinkle some extra sugar on top before baking.
2. Place the muffins in the preheated oven and bake at 210 C ( 410 F ) for about 13 minutes, then after 13 minutes reduce the oven temperature to 170 C ( 340 F ) and bake for an additional 4 minutes, ensuring they cook through without burning.

9)Ninth step, cooling process

1. Once baked, allow the muffins to rest in the tin for about 5 minutes to set their structure, carefully transfer them to a cooling rack to cool completely.
2. These muffins are best served warm or at room temperature, enjoy them with a glass of milk or your morning coffee.