In a large skillet, heat olive oil over medium-high heat. Season the chuck roast generously with salt, pepper, and paprika. Sear the roast on all sides until golden brown, about 4-5 minutes per side.
Place the chopped onion and minced garlic at the bottom of the slow cooker.
Carefully transfer the seared roast to the slow cooker on top of the onion and garlic.
Layer the sliced carrots and diced potatoes around the roast in the slow cooker.
In a separate bowl, combine the beef broth, soy sauce, rosemary, thyme, and any remaining salt and pepper. Pour this mixture over the roast and vegetables in the slow cooker.
Cover and cook on low for 8-10 hours or on high for 4-5 hours, until the meat is tender and easily pulls apart with a fork.
If you prefer a thicker gravy, mix cornstarch with water in a small bowl until smooth. About 30 minutes before serving, whisk this mixture into the cooking liquid and let it thicken before serving.
Once done, carefully remove the roast and vegetables from the slow cooker. Slice the roast against the grain and serve your beautifully cooked pot roast with the vegetables on the side.
Notes
Serve on a large platter and garnish with fresh herbs.