Quick Beef Stew With Mushrooms and Dijon | America's Test Kitchen

Ingredients

• 1½ pounds sirloin steak tips, trimmed and cut into ½-inch cubes
• 1½ teaspoons table salt, divided
• 4 tablespoons unsalted butter
• 8 ounces cremini mushrooms, trimmed and quartered
• 1 onion, chopped
• ¼ cup tomato paste
• 1 teaspoon chopped fresh rosemary
• 3 tablespoons all-purpose flour
• 2 cups beef broth
• 1 cup water
• ½ ounce dried porcini mushrooms, rinsed and chopped fine
• 2 tablespoons Dijon mustard