Caramelized Onion without beef crumbs

50 g butter 1 tablespoon olive oil 4 large yellow onions , sliced 1 garlic clove , crushed 2 eggs 2 egg yolks 50 g coarse grain mustard 142 ml double cream[...]

3 tablespoons butter 6 yellow onions , peeled and sliced 2 cups grated gruyere cheese 4 teaspoons roasted garlic 1 tablespoon chopped fresh parsley 2[...]

2 teaspoons extra virgin olive oil 1 lb onion , thinly sliced 1 garlic clove , minced 2 teaspoons chopped fresh thyme or 1/2 teaspoon dried thyme 1 cup 1%[...]