Preheat your oven to 350°F (175°C). This is the perfect temperature for baking your Funfetti Cookie Fudge Bars to golden perfection.
Line a 9x9-inch baking pan with parchment paper, leaving some overhang on the sides for easy removal later. If you prefer, you can simply grease the pan.
In a large mixing bowl, cream together the softened butter and granulated sugar until light and fluffy. This should take about 2-3 minutes using a hand mixer or whisk.
Beat in the egg, 2 teaspoons of vanilla extract, and the butter extract until well combined.