Slow Cooker Cola Roast with Gravy

  • Author: Mandy Pagano
  • Prep Time: 5 mins
  • Cook Time: 8 hours
  • Total Time: 8 hours 5 mins
  • Yield: 10 servings
  • Category: Beef, Main Course
  • Method: Slow Cooker
  • Cuisine: American


I calculated macros for a 3.5 lb roast, with less fat eaten, as everyone’s tolerance for the fatty stuff on a roast is different. Your protein may vary, depending on the size and cut of your roast and whether or not you trim it.


  • 3-4 lb (48-64 oz / 1361- 1814 g) Beef roast, trimmed of excess fat, if desired
  • 1 (12 fl oz/ 355 ml) can Zevia Cola (or similar sugar-free cola)
  • 1 c (8 fl oz/ 237 ml) beef broth
  • 2 tbsp dehydrated minced onion flakes
  • 1/2 tsp onion powder
  • 1/2 tsp garlic powder
  • 1/4 tsp dried parsley flakes
  • 1 tsp celery salt
  • 1/8 tsp smoked paprika
  • 1/2 tsp black pepper
  • 1 tsp dried thyme
  • 1/2 tsp or more glucomannan powder to thicken, as desired


  1. Place roast in a large slow cooker, and sprinkle with all seasonings (except konjac).
  2. Pour cola and beef broth over the roast.
  3. Cover and cook on low 8-10 hours, as desired, or until tender and falling apart.
  4. Remove roast and cover with foil to rest.
  5. Ladle out the liquid left in the pot into a large skillet or saucepan. You may skim off any visible fat, if desired.
  6. Over high heat, bring the liquid to a simmer and sprinkle glucomannan powder over the top, whisking in well.
  7. Cook to reduce for five minutes on high, until it is as thick as desired. If you have more than 2 cups liquid from the pot, you may add another 1/4 tsp or more glucomannan to thicken if needed. Taste and season with extra salt and pepper, if desired or needed.
  8. Serve roast toped with gravy.


Glucomannan powder adds 2 g total carbs (all of which is dietary fiber) per every additional 1/2 tsp you add to the entire recipe. Spread across ten servings, it is a miniscule increase to the total carb count per serving (0.2 g total), and a 0 g increase to NET carbs.

Per 1/10 recipe: 404 cal, 43 g protein, 24 g fat, 1.42 g carbs, 0.4 g fiber, 1.02 g NET carbs


  • Serving Size: 1/10 recipe

Keywords: slow cooker, cola, cola roast, roast, gravy