Basil Pesto and Bacon Mashed Sweet Potatoes

Name: Basil Pesto and Bacon Mashed Sweet Potatoes
Ingredients: 3 sweet potatoes, peeled and cut into 1-inch cubes; 2 cups chicken broth, or as needed to cover; 3 tablespoons butter; 5 slices uncured bacon, diced; 1 cup fresh basil leaves; 1/4 cup roasted almonds; 3 tablespoons olive oil, or more to taste; 1 tablespoon lemon juice; salt and ground black pepper to taste; 3/4 cup milk