Chocolate Syrup Brownies

INGREDIENTS

• 1/2 cup butter
• 1 cup white sugar
• 4 eggs
• 1 (16 ounce) can chocolate syrup
• 1 teaspoon vanilla extract
• 1 1/8 cups all-purpose flour
• 1/2 cup chopped walnuts
• 1/3 cup evaporated milk
• 1/4 cup butter
• 1 1/2 cups white sugar
• 1/2 cup semisweet chocolate chips