Bus Stop Breakfast Cookies

Name: Bus Stop Breakfast Cookies
Ingredients: 8 tablespoons (1 stick) unsalted butter; 1 cup white whole-wheat flour, gluten-free all-purpose flour, or all-purpose flour; 1 teaspoon baking powder; 1 teaspoon ground cinnamon; 3/4 teaspoon kosher salt; 1/4 teaspoon ground nutmeg; 1/4 cup honey or pure maple syrup; 1/4 cup nut or nut-alternative butter, such as sunflower butter, almond butter, or peanut butter; 1 large egg; 1 tablespoon vanilla extract; 2 cups rolled oats; 1 cup chunky mix-ins, such as dried fruit, unsweetened coconut, or chopped nuts or seeds, plus more for topping cookies; 1/4 cup sweet mix-ins, such as chocolate chips, chocolate-covered sunflower seeds, or M&Ms, plus more for topping cookies