Polenta Pizza With Brie and Red Grapes

    This should be made in a dish you can put under the broiler, about 9 x 13 in. (sort of 23 x 33 cm if such a thing exists) 8 c. chicken stock (see[...]

2 teaspoons yeast 7/8 cup warm water 2 tablespoons olive oil 1 teaspoon kosher salt 1 1/2 cups all-purpose flour 3/4 cup fine-ground polenta 2 teaspoons[...]