Sticky Toffee Yuletide-Spiced Cookies

Ingredients

• 1/4 cup old-fashioned rolled oats
• 1 cup chopped walnuts
• 1 1/4 cups all-purpose flour
• 3/4 teaspoon baking soda
• 1/2 teaspoon salt
• 1/2 teaspoon ground cinnamon
• 1/2 teaspoon ground cloves
• 1/4 teaspoon ground cardamom
• 1/4 teaspoon garam masala
• 1/2 cup (1 stick) salted butter, room temperature
• 1/4 cup granulated sugar
• 1/4 cup firmly packed light brown sugar
• 1/4 cup firmly packed dark brown sugar
• 1 large egg, room temperature
• 2 tablespoons molasses
• 1 teaspoon vanilla
• 1/2 cup English toffee baking bits
• 1/2 cup caramel baking bits or 12 square caramel candies, cut into pieces (see baking notes)
• 1/2 cup pitted dates, chopped (see baking notes)
• 1/2 cup premium white chocolate baking chips
• 1 teaspoon salted butter