Preheat oven to 350 degrees (make adjustment as necessary for your oven)
Cream shortening and sugar, then add vanilla. Sift dry ingredients and add to creamed mixture alternately with milk.
Divide dough into three equal parts (refrigerate if desired for a couple of hours)
Cut a piece of parchment paper that fits cookie sheet.
Roll one segment of dough out on parchment paper. Try to roll in a rectangular shape. Roll dough 1/8" thick. You could use cookie cutters too if desired.
Trim edges to "square" it up. Score lightly with a knife without cutting all the way through the dough.
Transfer dough and parchment paper to cookie sheet. Make indentions in dough with a fork, without poking all the way through. If desired, sprinkle the tops with a mixture of cinnamon and sugar. Bake at 350" for 10-12 minutes until edges are brown. Cool. If graham crackers are not crisp enough, bake a couple more minutes and watch closely.
Allow to cool slightly and cut through scored lines. Trying to break at the scored lines after cooling may result in uneven breaks. Store in a closed container.
Video
Notes
Please note that the nutritional info is just an estimate and not calculated by a nutritionist. Also, it does not account for any extra sugar/cinnamon on top.