Au Gratin Potato Tarts - Potatoes USA - Philippines

Ingredients

• ⅔ cup Butter
• 1-½ cups Flour
• 1 teaspoon Salt
• 3 Tablespoons Water
• 2 cups Instant Mashed Potatoes, prepared
• 4 Tablespoons Butter
• 1 Egg
• 3 Tablespoons Olive Oil
• ¼ cup Red Pepper, finely sliced
• ¼ cup Onion, finely chopped
• 6 Asparagus, finely chopped
• ½ cup Blue Cheese, crumbled
• ½ cup Sour Cream