• Preheat your oven to 350 degrees Fahrenheit. Spray a 9 by 13 inch baking dish with cooking spray. Set aside.
• In a large bowl, mix together the flour, cocoa powder, and salt. Set aside.
  2 cups all purposed flour, 1/2 cup cocoa powder, 1/2 teaspoon salt
• In a medium microwave safe bowl combine the butter and chocolate chips. Microwave at 30 second intervals, stirring in between, until the butter and chocolate are fully melted and smooth.
  16 tablespoons unsalted butter, 1/2 cup chocolate chips
• Whisk the sugar into the butter and chocolate mixture. The mixture will be a little grainy, but should be consistent throughout.
  2 cups granulated sugar
• Pour the chocolate mixture into the flour mixture. Stir to combine. The batter will be very thick. Whisk in the eggs, vanilla, and finally the Baileys.
  3 eggs, 2 teaspoons vanilla, 1/3 cup Baileys Irish Cream
• Spread the batter into the prepared pan. Bake for 30 minutes.

For the Frosting

• Once the brownies have cooled, make the frosting. Combine the sugar, butter, and Baileys in a heavy bottomed saucepan, stirring until the butter is fully melted and the sugar is incorporated.
  1 1/2 cups granulated sugar, 8 tablespoons butter, 1/3 cup Baileys Irish Cream
• Bring to a boil and let boil for 1 minute. Remove from the heat and stir in the chocolate chips. Continue stirring until it is smooth. Pour immediately over the brownies.
  1/2 cup chocolate chips
• Cut the brownies and enjoy. Store in an airtight container for up to 1 week.