Kale Caesar Gratin

Name: Kale Caesar Gratin
Ingredients: 1 pound Tuscan kale (about 2 small bunches), stems removed, leaves roughly chopped; 2 tablespoons olive oil; Kosher salt and freshly ground black pepper; 1 cup heavy cream; 2 garlic cloves, minced; 1/2 teaspoon Dijon mustard; 1 large egg yolk; 1 teaspoon Dijon mustard; 1 oil-packed anchovy fillet, drained and minced; 1 tablespoon red wine vinegar; 1 tablespoon fresh lemon juice; 1/2 cup canola oil; 2 tablespoons grated Parmesan; 1/2 cup panko breadcrumbs; 1/2 cup Parmesan