Pie Crust S’mores Cookie

Ingredients

• 2 cups all-purpose flour
• 1/2 teaspoon salt
• 1/2 teaspoon baking powder
• 1 cup (2 sticks) cold unsalted butter, cut into cubes
• 1/2 cup cold sour cream
• 1 large egg
• Sanding sugar (optional)
• Marshmallows
• Chocolate

Instructions here