We don’t call this recipe easy for nothing. This simple, delicious pudding comes together with just a handful of ingredients and a little stirring. You mix sugar, cornstarch, and a bit of salt, then whisk in milk and egg yolks. It cooks over medium heat, until thickened, then—off the heat—you stir in butter and vanilla extract. Strain, let it cool in the fridge, and you’re done. The hardest part is waiting for it to set before the kids—or you—can devour it.