Boxty (Irish Potato Pancakes) With Bangers In A Guinness Mushroom And Onion Gravy

Name: Boxty (Irish Potato Pancakes) With Bangers In A Guinness Mushroom And Onion Gravy
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Cuisine: European, British
Ingredients: 1 pound sausage (Irish or English bangers if you can get them); 1 tablespoon oil; 1 large onion, sliced; 8 ounces mushrooms, sliced; 1 clove garlic, chopped; 1 teaspoon thyme, chopped; 2 tablespoons flour (or rice flour for gluten-free); 1 (12-ounce) bottle Guinness (or 1 1/2 cups beef broth); 1 tablespoon Dijon mustard; 1 tablespoon Worcestershire sauce; 1 tablespoon brown sugar; For the boxty; 1 cup potato, grated; 1 cup mashed potatoes; 1 cup flour (or rice flour for gluten-free); 1 cup milk (or buttermilk); salt and pepper to taste; butter or oil for frying