Mix dry ingredients together until crumbly. Put eggs and vinegar in a cup and fill cup with cold water. Add to dry mixture and mix with hands to shape into a ball. Let sit in fridge overnight.
Pastry should be removed from fridge a few hours before use to allow it to soften. Roll out on a floured board to desired thickness. Cut out with flower cookie cutter and press in muffin tin.
Fill with filling of your choice, and bake accordingly.