How to Make It
To prepare the crust, line the bottom of an 8-inch round tart pan with removable bottom with a round of parchment paper.
Combine, dates and next 6 ingredients (through vanilla) in the bowl of a food processor; process until all ingredients come together, adding water 1 tablespoon at a time as needed to form a sticky ball. Transfer the tart pan; using lightly moistened hands, press the mixture evenly along the bottom and up the sides of the pan to form the crust. Refrigerate until ready to fill.
To prepare the filling, combine sugar and next 5 ingredients (through avocados) in the bowl of a food processor; process until smooth, scraping down the sides as needed. Spread filling into prepared crust and chill at least 30 minutes or until set. Garnish with fresh raspberries, strawberries, and hazelnuts.