Four-Cheese Steakhouse Potato Pizza

Ingredients

• 1 poblano pepper
• 1 teaspoon olive oil
• 8 ounces mascarpone cheese
• 1 envelope active dry yeast
• 1 cup warm water (90 to 105 degrees F)
• 1/2 teaspoon sugar
• 3 cups all-purpose flour (plus additional for kneading)
• 1 teaspoon kosher salt
• 1/2 teaspoon freshly ground black pepper
• 2 tablespoons extra-virgin olive oil
• ¼ cup masa or cornmeal, for pizza peel
• 6 fingerling potatoes, unpeeled
• 1 1/2 tablespoons butter
• 1 tablespoon extra-virgin olive oil
• 1 1/4 teaspoon kosher salt
• 1/4 teaspoon freshly ground black pepper
• 3/4 cup freshly grated fontina cheese
• 3/4 cup freshly grated provolone cheese
• 1/4 cup freshly grated Parmigiano Reggiano cheese
• 1/2 cup freshly crumbled Maytag Blue Cheese
• 2 tablespoons coarsely chopped fresh rosemary
• Balsamic glaze, as needed
• 2 tsp. butter
• 1 tablespoon olive oil
• One 6- to 7-oz. NY strip steak (or tenderloin)
• Salt and pepper
• Canola Oil
• 2 shallots, very thinly sliced
• 1/4 teaspoon salt
• 1/2 russet potato, peeled and julienned