I begin by heating olive oil in a large pot over medium-high heat. The ground beef goes in first and is cooked until lightly browned, making sure it stays juicy. Once done, I remove it and set it aside, keeping the flavorful fat in the pot.
Next, I add the chopped onions and red bell peppers to the same pot. They cook until soft and fragrant, soaking up all the beef flavor. Then I stir in cumin, paprika, oregano, and cayenne, letting the spices bloom for a deeper taste.
The cooked beef goes back into the pot along with chicken stock, sugar, salt, and pepper. I let everything simmer until the liquid reduces and the mixture thickens. Finally, I mix in the raisins for a classic sweet-savory balance.
Once the filling is done, I cover it and let it chill for at least three hours. This step is important because cold filling is easier to handle and keeps the pastry from tearing.
I preheat the oven and lay out the pastry rounds. Each one gets a small scoop of filling and a couple of olive halves. I make sure not to overfill so sealing is easy.
I lightly moisten the edges with water, fold the dough into half-moons, and crimp the edges firmly. After placing them on lined trays, I bake until the empanadas are golden, flaky, and crisp.