Place buckwheat kernels in a large skillet and turn heat on medium low.
Dry toast until the nutty smell is released and color turns slightly darker brown.
Remove from heat.
Meanwhile, Bring 2 cups of water to a boil.
Salt like you would pasta water, then stir in the toasted buckwheat.
Leave uncovered on medium heat until the water and buckwheat are the same level.
Then cover with a lid, turn down to low and simmer until all the water is absorbed, 5-10 minutes. This step is important in achieving a fluffy kasha that isn’t mushy or clumpy.
Turn off the heat and allow to steam for a few minutes, covered. Fluff with a fork.
Stir in pasta, if you’re using it, and a dollop of butter. It’s also superb with a light sprinkling of parmesan