Step 1

Preheat the oven to 350 degrees F (175 degrees C).

Step 2

Place blueberries into an 8-inch square baking dish.

Step 3

Stir together flour, white sugar, brown sugar, and cinnamon in a medium bowl. Stir in vegan mayonnaise until the mixture resembles coarse crumbs. Sprinkle the mixture over the top of the berries.

Step 4

Bake in the preheated oven until the filling is bubbly and the top is lightly browned, 35 to 40 minutes.