Make sure your butter is cold when you cut it in. The cold butter makes these nice and fluffy, like when you're making pie dough.
Challenge Butter is the best tasting and the best for baking - be sure to use the best ingredients for the best results.
Don't crowd these on your baking sheet. They need a little room to grow.
You can make your own buttermilk with lemon juice OR vinegar and regular, low-fat, or fat-free milk.