Four ounces of regular sliced bacon can be used, but the thinner slices are a little harder to remove from the soup. Depending on the age and brand of split peas, the consistency of the soup may vary slightly. If the soup is too thin at the end of step 3, increase the heat and simmer, uncovered, until the desired consistency is reached. If it is too thick, thin it out with a little water. In addition to sprinkling the soup with the Butter Croutons, we also like to garnish it with fresh peas, chopped mint, and a drizzle of aged balsamic vinegar.