Double Chocolate Brownies

I found this recipe on Allrecipes and made some alterations. These are not the best brownies I've ever partake of, but they are pretty tasty and easy to make.

• 1 cup butter, melted
• 2 cups white sugar
• 1 tablespoon vanilla extract
• 4 eggs
• 1 1/2 cups all-purpose flour
• 1 cup unsweetened cocoa powder
• 1 teaspoon salt
• 1 cup semisweet chocolate chips

Directions

1. Preheat oven to 350 degrees F (175 degrees C). Lightly grease a 9x13 baking dish.
2. Combine the melted butter, sugar, and vanilla in a large bowl. Beat in the eggs, one at a time, mixing well after each, until thoroughly blended.
3. Sift the flour, cocoa powder, and salt in a bowl. Gradually stir flour mixture into the egg mixture until blended. Stir in the chocolate morsels. Spread the batter evenly into the prepared baking dish.
4. Bake in preheated oven until an inserted toothpick comes out clean, 25-30. Remove, and cool pan on wire rack before cutting. The recipe originally had baking time at 35-40 minutes. I have found this would be much too long. Baking them for less time also gives them a more fudgy taste.