This Is So Smart: A Brisket Patty Melt Made With Cornbread

Ingredients

• 2 pounds beef brisket
• 1 tablespoon extra-virgin olive oil
• Kosher salt
• 1 yellow onion
• 1 clove garlic
• 1 teaspoon light brown sugar
• 1 tablespoon tomato paste
• 2 cups chicken stock
• pinch of red-pepper flakes
• Olive oil spray
• 1 1/4 cups cornmeal
• 1 cup all-purpose flour
• 1 1/2 teaspoons baking powder
• 2 teaspoons kosher salt
• 2 tablespoons light brown sugar
• 3 serrano chiles
• 4 green onions
• 1 1/2 cups whole milk
• 1/2 cup whole-milk yogurt
• 1/2 cup extra-virgin olive oil
• 1 large egg
• 1 small red onion
• 4 slices gruyere cheese
• Unsalted butter