Beef Stew in Berbere Sauce without vegetables

1 large white onion, chopped coarsely 1/4 cup butter 1 tablespoon fresh ginger , grated 1 tablespoon paprika 1 tablespoon cayenne (read intro) 1 teaspoon[...]

4 tablespoons olive oil 3 1/2 lbs boneless beef chuck roast , trimmed, cut into 2 1/2-inch pieces 3 1/2 cups chopped onions 2 cups cabernet sauvignon wine 1[...]