Vintage Jam Tarts Recipe

INGREDIENTS

• 1 cup finely-ground cornmeal
• 1 cup whole wheat pastry flour
• 2 cups all-purpose flour
• 1 1/2 teaspoons finely ground sea salt
• 2 tablespoons baking powder
• 3 tablespoons sugar
• 1 cup unsalted butter, chilled, and cut into 1/4-inch chunks
• 1 1/2+ cups milk
• 1 egg, just the egg white
• 1/3 cup jam (any flavor(s) you like)