Cut the washed meat into roughly equal slices, 5 cm diagonally. Squeeze the tomato pulp over them, pour baking soda over them, add the pepper and bay leaf. Leave for half a day in a warm place.
Transfer the meat and pour the marinade into a thick-bottomed pan. Sprinkle with lemongrass powder and season with salt.
Simmer over medium heat for 35-40 minutes.
Side dishes such as greens, potatoes, pasta, or grains are suitable to serve with this meal.