Can I use ground flaxseeds instead of whole?

You can, but the texture changes completely. Ground flax makes denser, more bread-like crackers. I prefer whole seeds for that satisfying crunch. If you do use ground, reduce the water slightly - maybe by a tablespoon - since ground flax absorbs more liquid.

Are these crackers gluten-free?

Absolutely, Flaxseeds are naturally gluten-free, and so are all the other ingredients in this recipe. They're perfect for anyone avoiding gluten - just make sure your spices and parchment paper are certified GF if that's a concern for you.

Why did my crackers turn out chewy instead of crisp?

Oh honey, I've been there. Usually it means either: 1) Your layer was too thick (remember - paper thin), 2) They needed more baking time, or 3) You broke them before they cooled completely. Next time, try spreading thinner and baking until the edges lift from the parchment. For more on crisping issues, check out this guide on air fryer chips that get soggy.

Can I make these without oil?

Technically yes, but they won't crisp up as nicely. The oil helps them brown and gives that perfect snap. If you must skip it, try spraying the parchment lightly with cooking spray instead - it helps prevent sticking at least.

How do I know when they're done baking?

Your nose knows first - they'll smell nutty and toasty. Visually, look for the edges pulling away from the parchment and a dry surface. They'll continue crisping as they cool, so don't wait until they're super dark in the oven. For general baking tips on achieving crispness, you might find this article on homemade crackers helpful.