Fall Fruit Galette

Ingredients

• sugar
• kosher salt
• all-purpose flour, plus more for surface
• chilled unsalted butter
• fennel seeds
• sugar, plus more for sprinkling
• apples , scrubbed, cored, thinly sliced
• apple cider vinegar
• vanilla extract
• heavy cream
• Softly whipped cream or vanilla ice cream
• A spice mill or mortar and pestle