CARAMELIZED ONION AND BACON GALETTE

Steps:

• In medium bowl, stir together flour, baking powder and 3/4 teaspoon salt. Cut in 3/4 cup cold butter, using pastry blender or fork, until mixture looks like coarse crumbs. Stir in buttermilk until dough comes together.
• Knead 5 to 10 times or until dough is smooth. Shape dough into flattened round; wrap in plastic wrap. Refrigerate about 45 minutes or until dough is firm and cold.
• In 12-inch skillet, melt 1/2 cup butter over medium-high heat. Add onions; cook 5 to 6 minutes, stirring frequently, until onions are tender. Stir in sugar and vinegar. Cook 8 to 10 minutes, stirring frequently, until onions are light golden brown. Stir in 1 tablespoon of the thyme leaves and 1/2 teaspoon salt. Cool onion mixture 10 minutes.
• Heat oven to 425°F. Line large cookie sheet with cooking parchment paper. Using floured rolling pin, roll chilled dough on lightly floured surface to 14-inch circle. Roll one edge of dough onto rolling pin, and carefully place dough on cookie sheet.
• Using fork, poke holes in dough
• Spoon onion mixture onto center of dough; spread to within 2 inches of edge. Scatter bacon pieces on top of onion mixture. Fold 2-inch edge of dough up over filling, pleating crust as necessary. Brush crust with egg.
• Sprinkle cheese over bacon in center of galette. Bake 22 to 24 minutes or until crust is golden brown. Sprinkle remaining 1 tablespoon thyme leaves over galette. Serve immediately, or let stand 30 minutes.