Preheat your smoker to 350ºF with the lid closed. Use cherry, maple, or apple pellets for best results.

Wash and dry the blueberries before tossing with the lemon juice and vanilla. Mix the dry ingredients together in a separate bowl before adding to the blueberries. Stir together and set aside.

To make the crumble, mix the crushed graham crackers, brown sugar, and salt together in a large bowl before pouring over the melted butter and vanilla. Stir together until the crumble resembles wet sand.

Add the blueberry filling to a 13x9 baking dish or large cast iron skillet. Spread the crumble over the top in an even layer.

Smoke for 50-60 minutes until the crumble is golden brown and the blueberry filling is thick and jammy. Optional: Grate some fresh lemon zest over the finished blueberry crumble while warm.

Let the crumble cool for at least 30-60 minutes to thicken the filling before serving. Serve with vanilla bean ice cream or whipped cream and enjoy!