Recipe Tips This recipe can be used with our other infusions as well. Why not try using our Organic Lavender & Echinacea tea bags instead, for a lovely floral touch to your shortbread biscuits. Or even trying your hand at Matcha shortbread? To make your shortbread biscuits extra yummy, you could add some chocolate and nuts. You can freeze your dough logs for as long as you like, and slice off your biscuits pieces when you want to bake them.