Prepare the dough by combining the flour, butter, shortening, turmeric, and salt in a food processor. Pulse these ingredients until a fine crumb forms.
Slowly add in ice-cold water while pulsing the food processor until the dough just starts to come together. Add in one tablespoon of the ice water at a time (roughly ½ cup total).
Once the dough stays together by squishing it in your hands, wrap the dough in plastic wrap and place it in the refrigerator for at least an hour.
While the dough rests, add the ground beef to a medium-sized saucepan over medium-high heat. Cook until browned.
Add the thyme, allspice, smoked paprika, beef bouillon, seasoned salt, black pepper, and ketchup to the ground beef. Stir to combine and continue cooking on low heat.
Add the chopped onions, garlic, and Scotch bonnet pepper to the ground beef mixture and cook until the onions are slightly softened.
Add the beef mixture to a blender or food processor along with the 15 crackers and pulse until the crackers and onion mixture are blended into the beef. Do not over-blend. Set the mixture aside.
Preheat oven to 400 F.
Take the dough out of the refrigerator. Split the dough in half so you have two mounds of dough.
Take one mound of dough and roll it into a rectangular sheet about ⅛ inch thick and 12 by 18 inches in length and width. Cut the dough into strips, each measuring approximately 5 by 3 inches.
Spoon ¼ cup of the beef mixture into the center of one of the pieces of dough and fold the dough over the filling, then press down the edges into a slightly rounded square and crimp them with a fork. If the edges aren't sticking well, add a little water to the edges before crimping.
Place the patty on a parchment-lined baking sheet.
Repeat with the remaining filling and dough.
Transfer the baking sheet to the preheated oven and bake for 10 to 12 minutes, or until golden brown.
Allow to cool before eating.
The patties can be eaten wrapped in coco bread or with hot sauce.