Ingredients
1⅓cupsall purpose flour
2tbspcornmeal
½tspfine salt
½cupfrozen unsalted butter,cubed
1tbspapple cider vinegar
¼cupice water
8ozsoft goat cheese,(1 package)
1egg yolk
½tspkosher salt
¼tspfreshly ground black pepper
1pinchcayenne pepper
2tbspfresh basil,sliced
3cupscherry tomatoes,halved
1tbspextra virgin olive oil
1tspdijon mustard
1egg,beaten
2tspwater
2tbspparmigiano reggiano cheese,or to taste, freshly grated
1tspextra virgin olive oil,or as desired
sea salt,to taste
Preparation
Combine flour, cornmeal, salt, and frozen butter in a food processor. Pulse until mixture resembles coarse crumbs. Add vinegar and ice water and pulse again until mixture comes together in clumps, scraping down the sides of the bowl as needed.
Wrap the dough up in a plastic wrap and shape it into a disc. Refrigerate for about 1 hour until thoroughly chilled.
Combine goat cheese, egg yolk, kosher salt, pepper, cayenne, and basil in a bowl. Mix using a spatula until smooth and soft.
Place dough on a lightly floured work surface and sprinkle top with flour. Roll out into a ⅛-inch-thick circle, about 13 inches in diameter. Roll dough over the rolling pin and transfer onto a 12-inch pizza pan; refrigerate until ready to use.
Preheat the oven to 425 degrees F.
Mix tomatoes, 1 tablespoon of olive oil, and Dijon mustard together in a bowl.
Drop spoonfuls of the cheese mixture onto the dough and spread evenly, leaving about 1½-inch space on the sides. Place tomato mixture on top of cheese using a slotted spoon. Fold excess dough up and over tomatoes, creating a pleat every 3 inches or so by gently pressing and folding.
Combine beaten egg and water in a small bowl; brush over crust. Sprinkle Parmigiano-Reggiano cheese over galette.
Place a foil-lined pan on the rack under the galette to catch any possible drips. Bake in the preheated oven for about 30 to 35 minutes until well browned on bottom and top.
Remove from the oven and let cool completely for about 30 minutes. Sprinkle with remaining olive oil and sea salt. Serve room temperature or chilled.