Eating real food means committing to regularly cooking real food. And having good tools definitely makes the time spent in the kitchen preparing food more enjoyable.
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Cast Iron Skillets
A cast iron skillet is a workhorse in the kitchen. It can sear food on the stovetop, and bake it in the over.
Good knives are a requirement to work easily in the kitchen. While there are many styles of knives, two will get you pretty far in the chopping, slicing and other tasks.
Sheet pan meals minimize dishes by cooking meat and vegetables together. Sheet pans are also great for corralling packages of meat to defrost in the refrigerator.
Instant Read Thermometer
An instant read thermometer lets you make sure your steak is cooked to your desired level of doneness, that the roasted whole bird has reached the appropriate internal temperature and more.
These are definitively not required in the kitchen, but sometimes the right specialized tool can just bring a little extra joy in the kitchen.