Salvadoran Tamale Pisques Recipe

Name: Salvadoran Tamale Pisques Recipe
Cuisine: American, Latin American
Ingredients: 4 cups masa harina (corn flour); 2 cups warm water; 1 cup vegetable shortening; 2 tsp. baking powder; 2 tsp. salt; 1 cup cooked and mashed red beans; 1/2 cup tomato sauce; 1/4 cup diced green bell pepper; 1/4 cup diced red bell pepper; 1/4 cup diced onion; 2 cloves garlic, minced; 2 tsp. dried oregano; 1 tsp. ground cumin; 1/2 tsp. black pepper; 16 banana leaves, cleaned and cut into 8-inch squares