To make the crust, preheat the oven to 350 degrees. Blend graham crackers, sugar and salt in a food processor until graham crackers are finely ground. Add butter and vanilla; process until moist crumbs form. Press crumb mixture onto bottom and sides of a 9-inch round tart pan, springform pan or pie plate. Bake crust until deep golden brown, about 12 minutes. Cool completely.
In a medium bowl, mix the strained yogurt with the maple syrup and the scraped beans from the vanilla bean. Spread the yogurt mixture in the crust and smooth the top. Serve immediately or store in the refrigerator for a few hours.
Garnish with fresh blueberries or pour blueberry sauce over the top. Store leftovers in the refrigerator, however crust will be soft the next day