Brown Sugar Nut Bars

Ingredients

• 1/2 cup plus 3 tablespoons butter, divided
• 1/2 cup powdered sugar
• 1 cup all-purpose flour
• 1/2 cup brown sugar ((packed))
• 3/4 teaspoon lemon juice
• 1 tablespoon water
• 1 cup slivered almonds or any nuts of choice ((can be a combination))
• 3/4 teaspoon pure vanilla