Butterscotch PB Monster Cookie Bars (Melskitchencafe) Recipe | Say Mmm

Ingredients

• 1/2 cup (1 stick, 8 tablespoons, 4 ounces) butter, softened to room temperature (I use salted butter)
• 1 cup (9 ounces) creamy peanut butter
• 2/3 cup (5 ounces) light brown sugar
• 2/3 cup (5 ounces) granulated sugar
• 1 teaspoon baking soda
• 1/4 teaspoon salt
• 2 large eggs
• 1 teaspoon vanilla extract
• 1 1/4 cups (4.75 ounces) quick oats (see note)
• 1 1/4 cups (4.75 ounces) old-fashioned oats (see note)
• 1 cup (6 ounces) chocolate chips
• 1 cup (6 ounces) butterscotch chips or peanut butter chips or more chocolate chips (see note)