Whisk flour, baking powder, salt, curry powder, bijol, and sugar in a large bowl
Cut in cold butter/shortening until crumbly with pea-sized bits visible
Whisk together ice water, vinegar, and ¼ beaten egg, then add gradually to flour mix until dough just comes together without overworking
Wrap dough in plastic and chill for 30 minutes
Roll dough into a rectangle, fold into thirds like a letter, then chill for 15 minutes
Repeat the folding and chilling process 2–3 times for extra layers
Chill dough for at least 30 minutes before using
Brown ground beef in oil with onion, scallions, and garlic
Add Scotch bonnet pepper, thyme, paprika, black pepper, garlic powder, onion powder, Caribbean spice, roasted garlic seasoning, soy sauce, ketchup, and browning
Stir in breadcrumbs soaked in water and 1 cup water, then simmer until filling is cooked and cooled
Roll dough to ⅛-inch thickness and cut 6-inch circles
Place 2–3 Tbsp cooled filling in the center of each circle
Brush edges with water, fold, and press to seal, then crimp edges with a fork
Arrange patties on parchment-lined baking sheet and brush tops with egg wash
Bake at 375°F for 25–30 minutes until golden, crisp, and flaky
