Ingredients:
½ cup (113g) unsalted butter
2 cups (400g) packed brown sugar
2 large eggs
1 teaspoon vanilla extract
½ teaspoon salt
1 teaspoon baking powder
2 cups (248g) all-purpose flour
1 cup Christmas M&Ms (or your favorite festive colors)
½ cup Christmas sprinkles
Directions:
Preheat the oven to 350°F (175°C). Line a 9×13-inch metal pan with foil and coat it well with cooking spray.
In a mixing bowl, use a stand or hand mixer to combine the butter and brown sugar until crumbly. Add eggs and vanilla, mixing until smooth.
Stir in the salt, baking powder, and flour until just combined. Fold in most of the M&Ms and sprinkles, reserving a few for topping.
Spread the mixture evenly into the prepared pan. If the dough is sticky, spray your hands with cooking spray to press it down smoothly.
Top the dough with the remaining M&Ms and sprinkles for a festive look.
Bake for 22-25 minutes, until the edges turn lightly golden. Avoid overbaking; the bars will continue to set as they cool.
Allow the bars to cool completely before slicing into squares or rectangles.
Store in an airtight container for up to 4 days, or freeze for up to a month.
Servings: Makes about 20 bars