Easy Chocolate Muffins

pardon my piping as i pipe without a tip

Recipe 

Ingredient 1 -
2 large eggs (about 100g) room temperature
110g unsalted butter, melted and cooled
240ml buttermilk, room temperature (I use normal milk, added 1 tbsp lemon juice in and rest for 10 mins)
2 tsp pure vanilla extract
1 tsp coffee extract (optional)

Ingredient 2 -
225g plain flour (sieved)
60g unsweetened cocoa powder (I use hershey dark powder), sieved
230g light brown sugar
1 tsp baking powder
1 tsp baking soda
1/2 tsp salt
180g semisweet chocolate chips

Steps - 
1. In a big bowl - combine the plain flour, cocoa powder, brown sugar, baking powder, baking soda and salt. Mix well then add the chocolate chips in.
2. In another bowl, whisk the eggs with balloon whisker. Then pour the cooled butter, buttermilk and vanilla extract in. Whisk to mix well.
3. Make a well in the center for step 1 and pour the step 2 in. Fold in and stir to mix well. Note - do not overmix the batter else the muffins will be tough.
4. Fill 3/4 batter onto muffins cup.
5. Bake in preheated oven 190 degree celsius for about 19 mins, bake until a toothpick inserted into the center of a muffin comes out with a few moist crumbs clinging to it. 

Frost with nutella :)

Note to self - 
190 degree celsius baked for 17mins.