If using apples instead of quince, choose a firm cooking apple such as Granny Smith, Fuji, or Gala.
Stove top instructions:
Set onions aside to add later. In a 4- to 5- quart Dutch oven, brown beef one third at a time, in 2 Tbsp. hot olive or cooking oil. Transfer beef to platter; drain fat and return beef to Dutch oven. Increase wine to 1-1/2 cups and vinegar to 1/3 cup. Stir wine, tomato paste, vinegar, cinnamon, rosemary, allspice, salt, and red pepper into meat. Bring to boiling. Reduce heat and simmer, covered, for 1-1/4 hours. Add onions, squash, and quince, if using. Return to boiling. Reduce heat. Simmer, covered, 30 minutes more or until quince and vegetables are tender. If using apples, add the last 10 minutes of cooking. Remove; discard cinnamon. Serve as above.
For Easy Cleanup:
Line your slow cooker with a disposable slow cooker liner. Add ingredients as directed in recipe. Once your dish is finished cooking, spoon the food out of your slow cooker and simply dispose of the liner. Do not lift or transport the disposable liner with food inside.