Homemade Empanadas: How to make them?

Ingredients

• 1 tablespoon vegetable oil
• 1 small onion finely diced
• 4 cloves of garlic minced or pressed
• 1 lb (454gms) lean ground beef
• 1 sweet bell pepper, any color finely diced
• 2 tablespoons finely chopped manzanilla olives (stuffed green Spanish olives)
• 1 tablespoon juice from the olive jar
• 1½ teaspoons fine sea salt
• 1 teaspoon pepper
• 1 cup (240ml) tomato sauce
• 2 tablespoons chopped fresh cilantro optional
• 2 cups (280gms) Tonomi Cassava flour
• 1½-2 cups (360-480ml) boiling water
• 1 teaspoon fine sea salt
• vegetable oil for frying, 1" deep (2.5cm) in small heavy-bottomed pot.