These brownies, blondies, and dessert bars are easy to pack, stack, and share. Serious Eats / Morgan Hunt Glaze For spring and early summer potlucks, brownies, blondies, and dessert bars are hard to beat—easy to pack, stack, and share. To find the ones readers return to most, we looked at the recipes they save in MyRecipes, our free tool for organizing your kitchen favorites. These are the most-saved picks across Serious Eats. Love these recipes? Join MyRecipes —your personal home for recipes—to easily save and organize your favorites, plus thousands more, in one convenient place. Serious Eats / Amanda Suarez With a chocolaty coconut base, a creamy custard icing in the middle, and more chocolate on top, Nanaimo bars are an iconic Canadian treat. Carrie Vasios Also known as Seven Layer Cookies, these gooey treats combine coconut, chocolate chips, pecans, and a graham cracker base.…