in the past, I've used the store bought Cajun/creole butter. this year I made my own. 1lb unsalted REAL butter, 3/4 cup all natural/no additive apple juice and a dose of tony chachere's salt free seasoning. melted the butter and skimmed the solids off the top. then added the apple juice and seasoning(didn't measure it out, just kinda put some in there). then put it all in a jar and into the fridge(this was sunday). I made it early because I wanted to give the butter a few days to really soak up the flavor of the seasoning. tonight, I warmed up the mix and injected half of it into the bird(about 13.5lbs). I plan to use the remainder to baste over the turkey a time or two while cooking.
tip-if you use this recipe for injection, bear in mind, it likes to separate quickly. I had to stir it with a spoon then draw the fluid into the injector quickly each time I filled the injector. also, if you make it early like I did, it will also separate when cooled leaving a very thick top layer(butter) and thinner lower layer(juice) so don't panic.