Pumpkin Pie Cookie Bites with Spiced Filling and Creamy Topping

Ingredients

• 2 2/3 cups all-purpose flour
• 1 tablespoon pumpkin spice
• 1/2 teaspoon salt
• 3 ounces cream cheese, at room temperature
• 12 tablespoons unsalted butter, at room temperature
• 1/2 cup granulated sugar
• 1/2 cup packed brown sugar
• 1 large egg yolk, at room temperature
• 1 teaspoon vanilla extract
• 1/3 cup coarse sugar, for rolling
• 1 large egg, at room temperature
• 1/4 cup packed brown sugar
• Pinch table salt
• 1/2 teaspoon pumpkin spice
• 1/4 cup whole milk
• 1/2 cup pumpkin puree
• 1/4 teaspoon vanilla extract
• Whipped cream, for serving (optional)