Add almond flour and powdered sugar to a food processor and pulse until combined into a fine powder.

Add the water, almond extract, and rose water if desired. Mix until everything comes together into one big ball. If the mixture is still sticky enough to stick to your fingers, add more almond flour and powdered sugar 1 tablespoon of each at a time until not sticky enough to stick to your hands.

Remove to a clean surface and knead for a minute or two until smooth. Roll into a log and wrap in plastic wrap. Chill in the fridge for an hour before using.