In a bowl, combine the oat flour, pecans and sugar. Add in the melted ghee and mix until crumble.
Press into a greased 9x13 baking dish, leaving about 1/3 of the mixture aside to sprinkle over the top of the filling.
Bake for about 20 minutes, until the crust has gone golden brown.
In a large bowl using an electric hand mixer, beat the cream cheese with the 2 sugars until smooth and creamy. Add in the egg and beat again until well mixed, stopping to scrape down the sides as necessary. Add in the rest of the ingredients and use a hand whisk to whisk until smooth and mixed.
Pour over the still-warm crust, and sprinkle with reserved crumbles.
Bake for 30-32 minutes until it begins to turn golden brown,
Turn your oven to HIGH broil and broil for 2-3 minutes (watch closely!) until the crumbles have gone crunchy.
Take out and let cool for 30 minutes, and then cover and refrigerate overnight to set.
Cut into squares and devour!
*I just baked two medium potatoes until nice and soft and then mashed them