Preheat oven to 350F. Put 1 1/2 sleeves graham crackers in a food processor. Blend until crumbs are small. In a large bowl, combine graham cracker crumbs with butter, melted and stir. Pour graham cracker mixture into a 9x13 dish and press it evenly into crust around dish.

Spread crust with Nutella. Layer on chopped hazelnuts, chocolate chips and toffee chips. Layer on shredded coconut, then evenly pour sweetened condensed milk across whole dish. Bake 25-30 minutes, or until top becomes slightly golden brown. Cool and cut into bars.