*When measuring using cups, be sure to fluff up your flour blend and grated cheese and gently spoon it into a dry measuring cup (meaning individually sized cups: 1/4 cup, 1/2 cup, 1 cup, etc.) and level off with a knife or flat object. Otherwise you can easily pack the cup by tapping it on the counter or shaking it to level it off.
https://glutenfreerecipebox.com/flaky-gluten-free-parmesan-pastry/