Oatmeal Butterscotch Bars | America's Test Kitchen

Ingredients

• 1 1/4 cups (6¼ ounces/177 grams) all-purpose flour
• 2 cups (6 ounces/170 grams) old-fashioned rolled oats
• 1/2 teaspoon baking soda
• 1/2 teaspoon salt
• 3/4 cup (4½ ounces/128 grams) butterscotch chips
• 16 tablespoons unsalted butter
• 1 cup packed (7 ounces/198 grams) packed dark brown sugar
• 2 teaspoons vanilla extract
• 1 large egg
• 1/4 cup (1½ ounces/43 grams) butterscotch chips
• 2 tablespoons packed dark brown sugar
• 1 tablespoon water
• 1/8 teaspoon salt