In a skillet combine blueberries, black berries, lemon zest, honey and water and place on a grill at around 300-350 Fahrenheit. Let it cook for about 10 minutes
Cut your donuts in half.
Let the berry mixture cook down for another 10 minutes until it's reduced to the consistency of your liking. I added another handful fresh blueberries at this point and took it off the heat.
Grill your donuts for about 2 minutes on each side until the glaze melts and caramelizes. It will get a too hard if you cook for too long so keep an eye on it.
Take a scoop of ice cream and top with the berries placing the other half of the donut on top. Cover with some more berries if you want! Enjoy!