Pistachio Brownie Toffee Bars Recipe: How to Make It

Ingredients

• 3/4 cup butter, softened
• 3/4 cup packed brown sugar
• 1 large egg yolk, room temperature
• 3/4 teaspoon vanilla extract
• 1-1/2 cups all-purpose flour
• FILLING:
• 1 package fudge brownie mix (13x9-inch pan size)
• 1/3 cup water
• 1/3 cup canola oil
• 1 large egg, room temperature
• TOPPING:
• 1 package (11-1/2 ounces) milk chocolate chips, melted
• 3/4 cup chopped salted roasted pistachios