Chilean Alfajores (Dulce de Leche Biscuits)

Ingredients

For the Biscuits:

• 2 cups flour
• 1 teaspoon baking powder
• ¼ cup margarine
• 1 ½ tablespoon of vinegar
• 3 eggs

For the Filling:

• ½ (1 lb.) of <a href="http://www.epicurious.com/recipes/food/views/homemade-dulce-de-leche-395011">dulce de leche</a>

Instructions

1. 1
   Mix flour, baking powder and margarine in bowl. Add vinegar and mix with fingers until dough is crumbly. Add eggs one at a time and knead until dough is firm and smooth.
2. 2
   With rolling pin on floured surface, stretch dough until is very thin and cut in 6 cm circles. Place on oiled baking sheet, prick with fork and bake 6 to 8 minutes until lightly golden. Remove from oven and baking sheet, let cool.
3. 3
   Fill with plenty of dulce de leche between two biscuits and press to spread more evenly, sprinkle with powder sugar and serve.