In a large mixing bowl, combine flour, sugar, salt and paprika. Add small pieces of cold butter. With electric beaters, blend butter and flour mixture together. (If mixing by hand, combine dry ingredients then cut in butter with a pastry blender or two forks.) Add water and vanilla. Mix well. Dough should begin forming into a ball. If necessary, add a little more water to bind. Divide the mixture in half and form into balls. On a lightly floured surface or piece of parchment paper, roll out the dough as thinly as possible, about 1/16th of an inch. Sprinkle with sea salt or other desired seasonings. Cut into 1 inch squares and place on a baking sheet lined with parchment paper. Bake at 400 degrees for about 7-8 minutes or until browned and crisp. (For extra crispy wheat thins, turn oven off and let wheat thins stay in oven for 2 hours or until oven cools down. When completely cooled, store in an airtight container at room temperature. Recipe makes about 5 dozen pieces.