Nutella Crunch Brownies - Confessions of a Chocoholic

Ingredients

• 1 1/4 sticks butter, melted (plus more for buttering pan)
• 2 large eggs
• 3/4 cups dark brown sugar
• 1/2 cup granulated sugar
• 1 cup unsweetened cocoa powder
• 1 teaspoon vanilla extract
• 1 teaspoon instant coffee powder
• 1/4 teaspoon salt
• 1/2 cup all-purpose flour
• 1 cup (8 oz) Nutella
• 1 cup (8 oz) dark chocolate
• 1/8 teaspoon salt
• 1 cups brown rice crisps