Based on expert reviews and availability, here are specific products and brands to look for: NPG Freeze Dried Lavender Flowers Go to product viewer dialog for this item.
($15.00 at Lavender By The Bay
(Available on Amazon): For a consistent flavor without the texture of buds, an extract is excellent for ice creams or delicate cakes. Key Tips for Choosing the Best Variety
($14.99 at Walmart): These are freeze-dried to preserve a vibrant purple color and a fresh, floral aroma that holds up well in cookies and teas. The Spice Way Lavender Flowers Go to product viewer dialog for this item.