Preheat oven to 350 degrees.

In a large bowl first mix all the dry ingredients together really well.

Using a hand or standing mixer, mix in room temperature butter and vanilla until smooth.

To make the gelatin "egg," in a small pan add 3 tablespoons of water. Heat on medium until it starts to steam. Using a fork, slowly mix gelatin into the water and mix quickly until there are no clumps and the mixture becomes thick but still runny. Quickly add to cookie batter and mix well. I found using my hands worked best.

Line your pan 11x7 baking dish with parchment paper and evenly spread cookie mixture. Bake for 20-25 minutes.

After 20-25 minutes, check the center with a toothpick. If it comes out clean, remove from the oven. If not, cook for another 5 minutes.

Let cool for at least 10 minutes before cutting into bars.