Melt the panna cotta and add the beetroot powder. Pass through a fine sieve, portion in the silicone molds and then let it set in the refrigerator. Freeze the panna cotta to dissolve or store in the freezer.
Mix the cassis puree with the sugar water and the violet syrup and reserve in a spray bottle.
Finish
Place the panna cotta on a plate or on a base of your choice and then let it thaw slowly in the refrigerator. Finish with the cassis sauce, raspberry, and a violet