Mix butter and sugar until smooth and creamy. Add maple syrup, and vanilla, and mix a bit more. Add eggs 1 at a time. Mix thoroughly and scrape the edge of the mixing bowl occasionally. Add flour and salt. Mix until most of the flour has blended in and add the granola. Mix and then add the currants. Mix until all is well combined. The last should be done by hand.
Pour into pan and even out. Sprinkle heavily with a cinnamon sugar. Then take a toothpick and zigzag so some of the sugar goes in a bit. The sprinkle with a bit of the granola and lightly press it in. Don’t put too much on top, just a little. Bake the Granola Pound Cake between 45 and 55 degrees. If over baked it will be dry.
Wait until cooled. Wrap well if to be used the next day, but it will be very tasty!