Ingredients:
2 eggs
1/2 cup - oil
1 cup - milk
1 tsp - vanilla
1 3/4 cup - all-purpose flour
1/2 cup - sugar
1/4 cup - cocoa
1 tbsp - baking powder
1/2 tsp - salt
1/2 cup - semi-sweet chocolate chips (85g)
Directions: 
1 Preheat oven to 400F and prepare muffin pan. Grease muffin pan or fill with paper liners. A nonstick pan requires no greasing.
2 In large bowl add and combine well eggs, oil, milk and vanilla.
3 In smaller bowl combine well flour, sugar, cocoa, baking powder, salt and chocolate chips.
4 Combine wet and dry mixtures and fold together gently until just mixed. Spoon into prepared pan. Bake at 400F for 18 minutes. Remove from pan and cool on rack.
5 Hint: Sprinkle extra chocolate chips on top of each muffin halfway thru baking.