Preheat your oven to 375 degrees and prepare a baking sheet with nonstick cooking oil.
Prepare the base by passing all of the ingredients through a food processor until they form a nice smooth crust. Spread it out on the baking pan. (You can use store bought as well)
Prepare the filling by passing all of the filling ingredients through a food processor until smooth. Pour over the pie crust base and bake for 30 minutes while you are preparing the pecan streusel.
Prepare the pecan streusel by combining all of the ingredients in a large bowl and stirring until well combined.
Remove the bars from the oven and reduce the temperature to 350 degrees. Then spread the pecan streusel over the top and bake for an additional 25 minutes until a toothpick comes out clean.
Serve hot or cold with whipped cream on top.