So, I came up with this method. I've been making basil butter this way for years now.
It is really convenient for all types of cooking on a variety of meats and veggies!
Here is how I make 2 pounds of basil butter:
10 cups of clean, dry basil leaves.
2 pounds of softened unsalted butter
food processor * optional but makes it go faster and has better consistency.
mid sized cookie dough scoop
several sheets of wax paper (about 24 that can fit into a gallon sized zip top bag when folded in half.)
large freezer zip top style bags
Sometimes I also add chives or garlic, etc. to the basil before mincing. It doesn't take long to mince by hand but when I make large batches, I ALWAYS use the food processor.
Harvest your basil, shake vigorously to get rid of hitch hikers. Then dunk it in cool clean water. Clip or pull the leaves off and then dry them a bit. I put mine through a salad spinner about 3 times and then blot it with paper towels. The basil doesn't have to be bone dry but you don't want a lot of excess moisture.
Once dry, mince your basil and add it to the butter and mix well.
If you have a food processor, simply process all the basil and butter together. Takes only a few minutes that way and you get a more consistent butter. I usually put some basil in followed by 1 stick of butter until done. If your processor is small like mine, you may have to work in 2 batches.Take your waxed paper and using the dough scoop, place one scoop of the butter in the center of the waxed paper.
Fold the waxed paper in half over the butter and lightly press down.
Take your rolling pin and very lightly roll the butter to about 1/4 inch thickness. Stay away from the edges or it will squish out! If it doesn't roll out into a perfect shape, it will not matter at all.
It will look like this:
As you can see, not all my butter was incorporated but it won't matter. Using a food processor prevents this. The photo below shows the difference using a food processor makes...see how much more uniform it is? This is some butter I had made before and forgot to upload the photos!
Okay, so repeat with remaining waxed paper and basil butter mixture.
Then continue on scooping until you are done! snip the edges of the paper if you need too and store in a freezer zip top bag.
Freeze up to a year. I've used it past that without issue.
When using this butter, leave it in the freezer until right before use.
It melts quickly so no defrosting is needed.
The butter should easily peel away from the paper. See?
If the butter is too thin, it may crumble or stick to the paper so work slowly at first. It doesn't really matter if the butter breaks since it is going to be used right away but it is harder to handle.
The basil doesn't turn black so it still looks pretty. I use this when grilling or baking, broiling, etc. I even had a friend who would get some and use it on her garlic bread. She would just add garlic and Parmesan cheese. BTW, this is amazing on grilled steaks!