Absolutely Best Brownies

Ingredients

• 1 cup unsalted butter
• 1.5 cups granulated sugar
• 0.5 cups brown sugar
• 0.75 cups unsweetened cocoa powder
• 0.5 cups semi-sweet chocolate chips
• 0.75 cups all-purpose flour
• 0.5 teaspoons baking powder
• 0.5 teaspoons salt
• 3 large eggs
• 2 teaspoons pure vanilla extract