01 - Heat olive oil over medium heat in a large pot. Add diced onion, carrots, and celery. Sauté for 5–7 minutes until vegetables are softened and fragrant.
02 - Add minced garlic, dried thyme, smoked paprika, and tomato paste to the pot. Stir and cook for 2 minutes until the spices are toasted and the tomato paste deepens in color.
03 - Stir in the rinsed lentils and bay leaf. Pour in the vegetable broth and bring to a boil. Once boiling, reduce heat to low, cover, and simmer for 25–30 minutes until the lentils are tender. Season with salt and pepper to taste.
04 - While the lentils simmer, combine flour, baking powder, salt, and dried herbs in a mixing bowl. Add the cubed cold butter and cut it in using your fingers or a pastry blender until the mixture resembles coarse crumbs. Stir in the milk until a soft, sticky dough forms.
05 - Remove and discard the bay leaf from the lentil mixture. Drop rounded tablespoonfuls of dumpling dough evenly over the surface of the simmering stew.
06 - Cover the pot tightly and let the dumplings steam over low heat for 15 minutes. Do not lift the lid during this time to ensure proper steaming.
07 - Check that the dumplings are puffed and cooked through. Ladle the stew and dumplings into bowls and serve hot.