01 -
Pat beef cubes dry with paper towels and season evenly with salt and black pepper.
02 -
Heat a tablespoon of oil in a skillet over medium-high heat and sear beef cubes in batches until browned on all sides, about 3-4 minutes per batch. Transfer browned beef to slow cooker.
03 -
In a bowl, whisk together beef broth, soy sauce, Worcestershire sauce, brown sugar, tomato paste, minced garlic, smoked paprika, salt, and pepper until smooth.
04 -
Place beef cubes in an even layer in the slow cooker. If using, arrange baby potatoes, carrots, and mushrooms around the meat. Pour sauce mixture evenly over all ingredients.
05 -
Cover and cook on low for 6 to 8 hours or on high for 3 to 4 hours until beef is fork-tender.
06 -
If a thicker sauce is desired, mix 1 tablespoon cornstarch with 2 tablespoons cold water to create a slurry, stir into slow cooker, and cook on high for an additional 15 minutes.
07 -
Taste and adjust salt and pepper as needed before serving.