Preheat oven to 350 degrees Fahrenheit.

Combine flour, oats, sugar and cinnamon in a bowl. Add butter and mix by hand until mixture holds together when pinched.

Set aside half the mixture. Line a 9- x 13-inch pan and press half the mixture evenly into the pan.

Bake 12-15 minutes until crust is golden.

For the filling, blend all ingredients until well combined. Poor over cooled crust and spread evenly. Sprinkle the remaining crust mixture over the cream cheese layer.

Bake 40-45 minutes until the top is golden brown.

Cool at room temperature. Cover and refrigerate for two hours. Use a sharp knife to cut into bars. Optional: Sprinkle with confectioners’ sugar before serving.