1½ cups plus one tablespoon all purpose flour (see note), 1 teaspoon baking powder, ½ teaspoon baking soda, ¼ teaspoon salt, ½ cup unsalted butter (softened but still cool), ½ cup granulated sugar, ⅓ cup brown sugar (lightly packed, make sure it's fresh and soft), 1 large egg, 2 teaspoons pure vanilla extract, 1½ cups M&M's or a mixture of M&M's and chocolate chips (divided), ¼ cup holiday sprinkles

225g / 1 cup unsalted butter (, softened (or use salted, skip salt)), 1 cup caster/superfine sugar ((granulated/ordinary white sugar ok too)), 1 1/2 tsp vanilla extract, 1 large egg ((55-60g / 1.9-2oz)), 3 cups flour (, plain / all purpose), 3/4 tsp baking powder, 3/4 tsp salt, Icing for Sugar Cookies

2 and 1/4 cups (281g) all-purpose flour (spooned and leveled), plus more as needed for rolling and work surface, 1/2 teaspoon baking powder, 1/4 teaspoon salt, 3/4 cup (12 Tbsp; 170g) unsalted butter, softened to room temperature, 3/4 cup (150g) granulated sugar, 1 large egg, at room temperature, 2 teaspoons pure vanilla extract, 1/4 or 1/2 teaspoon almond extract (optional, but makes the flavor outstanding)*, 3 cups (360g) confectioners’ sugar, 1/2 teaspoon pure vanilla extract (omit and replace with water for stark white icing), 2 teaspoons light corn syrup*, 4.5–5 Tablespoons (67–75ml) room temperature water, pinch salt*, optional: gel food coloring & sprinkles for decorating

3.75 cups all-purpose flour, 1 teaspoon baking powder, 0.5 teaspoon salt, 1.5 cups white sugar, 1 cup margarine, softened, 2 eggs, 2 teaspoons vanilla extract

1 stick (½ cup) salted or unsalted butter, softened to room temperature (see Notes for vegan option), ¾ cup cane sugar, 1 large egg (see Notes for egg-free option), 1 tablespoon molasses, 1 teaspoon pure vanilla extract, 2 cups all-purpose flour (see Notes for gluten-free option), 1 teaspoon baking soda, ½ teaspoon baking powder, ¼ teaspoon fine salt, ½ cup chocolate chips, ¼ cup candy-coated chocolate pieces (I use a mix of these dye-free sprinkles and just the green candies from these candy-coated chocolate pieces)

140g icing sugar sieved, 1 tsp vanilla extract, 1 egg yolk, 250g butter cut into small cubes, 375g plain flour sieved, 200g icing sugar sieved, edible food colouring optional, edible gold and silver balls, approx 2m thin ribbon cut into 10cm lengths

2 1/2 cups all-purpose flour, 1/4 teaspoon baking powder, 1/4 teaspoon fine salt, 3/4 cup white sugar, 3/4 cup unsalted butter (cut into small pieces, at room temperature), 1 large egg (lightly beaten), 1 teaspoon pure vanilla extract, ½ cup holiday sprinkles (plus extra for decorating), 4 cups confectioners' sugar, 1/4 cup meringue powder, Food coloring (optional), Decorating sugar (for topping, optional), Sprinkles (for topping, optional)

2 cups all-purpose flour, 1/2 cup sugar, 1 teaspoon baking powder, 1/2 cup unsalted butter ((softened at room temperature)), 1/4 cup milk, 1 teaspoon vanilla extract, 1/4 teaspoon salt, 1/4 cup powdered sugar, 1-2 teaspoons milk, 1-2 drops food coloring ((optional))