• Adjust oven rack to middle position (top and middle positions for 4 servings) and preheat oven to 450 degrees. Wash and dry produce. • Peel and thinly slice shallot. Quarter lemon. Finely chop chives.

• In a small bowl, combine cream sauce base and half the mustard. Season with pepper. • Arrange half the bread on one side of a baking sheet. Spread with a thin layer of mustard cream sauce, then top with prosciutto, gouda, and another drizzle of mustard cream sauce. Arrange remaining bread on empty side of sheet; spread with a thin layer of mustard cream sauce. • Bake on middle rack until bread is golden, cheese begins to melt, and prosciutto is lightly browned, 6-8 minutes. (For 4 servings, use two baking sheets; bake bread with prosciutto and gouda on top rack and bread with sauce on middle rack.)

• Meanwhile, heat a drizzle of oil in a medium pan over medium heat. (TIP: Depending on the size of your pan, you may need to work in batches.) Once hot, crack eggs* into pan and cover. Fry eggs until whites are set, 1-2 minutes (they’ll finish cooking later). Season with salt and pepper.

• While eggs cook, in a second small microwave-safe bowl, combine shallot, juice from two lemon wedges, 1 tsp sugar, 1 tsp water, salt, and pepper. (For 4 servings, use juice from four lemon wedges, 2 tsp sugar, and 2 tsp water.) Cover bowl with plastic wrap and microwave for 1 minute. Reserve 2 TBSP pickling liquid (4 TBSP for 4), then drain. • In a third small bowl, whisk together reserved pickling liquid, remaining mustard, and 2 TBSP olive oil (4 TBSP for 4). Season with salt and pepper to taste.

• Once bread has toasted 6-8 minutes, remove sheet from oven. Carefully top bread with prosciutto and gouda with sauce-topped bread, sauce sides down, to create sandwiches. Top with half the Parmesan, fried eggs, and a drizzle of remaining mustard cream sauce. Sprinkle with remaining Parmesan. • Heat broiler to high. Return to oven until cheese melts and eggs are cooked to preference, 2-3 minutes.

• In a medium bowl, toss mixed greens and pickled shallot with dressing. • Divide sandwiches between plates. Garnish with chives. Serve salad and remaining lemon wedges on the side. Wash hands and surfaces after handling raw eggs. Consuming raw or undercooked eggs may increase your risk of foodborne illness.