Don’t Overmix the Dough: Overmixing develops the gluten in the flour, resulting in tough bars. Mix until just combined.
Use Room Temperature Butter and Eggs: This ensures that the ingredients blend together smoothly and evenly, creating a more tender bar.
Press the Sprinkles into the Dough: Gently press the sprinkles into the dough before baking. This helps them adhere and prevents them from falling off.
Don’t Overbake: Overbaked bars will be dry and crumbly. Bake until the edges are golden brown and the center is just set.
Cool Completely Before Cutting: This allows the bars to firm up and prevents them from crumbling when you cut them.