Step 1
Heat water, wine, vinegar, 1/2 onion, lemon, sugar, salt, garlic, cloves, bay leaves, juniper berries, and peppercorns in a saucepan over medium heat until sugar is dissolved, about 5 minutes. Allow marinade to cool, then pour into a resealable plastic bag. Add chuck roast and toss to evenly coat, squeeze out excess air, and seal bag. Marinate in the refrigerator 2 to 3 days, turning roast twice a day.