Melt chocolate chips in double boiler and wait it until it reaches room temperature
Whisk eggs and sugar until creamy.
Add in olive oil and vanilla powder. Mix well.
Mix flour, salt, cocoa powder and baking powder in a seperate bowl and sift half of it into the egg mixture gradually. Stir with a spatula.
Pour in the buttermilk and mix until combined.
Stir in the remaining flour mixture gradually.
Add in melted chocolate.
Fold in chocolate chips.
Share the batter into 17 muffin liners.
Bake for 20 minutes or until an inserted toothpick comes out clean.
Cool them on a wire rack.
NOTES
Note: If you don't have buttermilk, you can make it yourself. Just drop 2 tablespoons lemon juice into ¾ cup lukewarm milk and wait 20 minutes. Follow the rest of the instructions the same way.