Loaded Blondies

Bahan-bahan (24 porsi)

• 2 cups all purpose flour
• 1 teaspoon salt
• 3/4 cup (1½ sticks) butter, (at room temperature)
• 3/4 cup granulated white sugar
• 3/4 cup packed brown sugar
• 3 large eggs
• 2 teaspoons vanilla extract
• 1 cup semisweet chocolate chips
• 1 cup butterscotch chips
• 1 cup coarsely chopped walnuts