Layer the split peas, lentils, and seasonings in a mason jar. (Use a funnel to achieve those beautiful, Instagram-worthy layers!)

To make the soup, pour the contents of the jar into a large pot.

Add the broth; bring to a boil over medium-high heat, then reduce the heat to medium, cover, and cook for about one hour, stirring a few times and adjusting the heat as needed, until the split peas are tender.

Taste and season generously with salt and pepper. Discard the bay leaf before serving.