Veggie Potato Chowder for Slow Cooker

Name: Veggie Potato Chowder for Slow Cooker
Ingredients: 6 medium potatoes, cubed (I used Yukon and White Potato mix); 3 (14 1/2 ounce) cans low sodium vegetable broth; 2 medium carrots, thinly sliced; 1 medium sweet onion, diced; 1⁄4 cup butter, cubed; 1 -2 garlic clove, minced; 1 teaspoon dried thyme; 1⁄4 teaspoon marjoram; 3⁄4 teaspoon salt; 1⁄2 teaspoon pepper; 1⁄4 cup flour; 1 1⁄2 cups half-and-half cream; 1 cup frozen peas, thawed; cheddar cheese, shredded (optional for topping bowl)