Lentil Soup with cilantro

3 tablespoons olive oil 1 large onion , chopped 2 garlic cloves , minced 1 tablespoon tomato paste 1 teaspoon ground cumin 1/4 teaspoon kosher salt , more to[...]

sea salt , more to taste 1 1/2 tablespoons olive oil 1 large onion , chopped 2 cups chopped leeks , white and light green only 1 medium sweet potato , diced,[...]