Pour the oat cream and corn starch into a saucepan on medium heat. Mix together and simmer until it thickens. Remove from heat. Add the cocoa, sugar, vanilla, coffee powder, and salt. Mix to combine.
Once the mixture has cooled a bit, pour the ice cream mixture into a high speed blender with the avocado and hazelnut spread and mix until completely combined.
When the mixture is cool enough, pour it into your ice cream machine and let it churn for the full program.
Make these brownies to add to the ice cream while the ice cream is churning in the machine. Once the brownies are prepared, either toss brownie pieces in the machine as the ice cream is churning or simply place brownie pieces on top of your serving.
When the churning program is complete, depending on your preference/machine, either serve right away or freeze until the ice cream is completely set.
To serve, toss on some chopped roasted hazelnuts and cacao nibs on your ice cream and enjoy!!
