Preheat oven to 400°F / 200°C. Place a rack in the center.
In a large bowl mix together the flour, farina, turmeric powder, milk powder (if used) and baking powder.
In another bowl dissolve the sugar in milk, add the oil and melted butter.
Add the dry ingredients (flour semolina mixture) to the wet ones. Stir well to obtain a yellow batter.
Grease a round 12 inches/ 30 cm baking pan with tahini.
Pour the sfouf batter to the baking sheet and use an offset spatula to make sure your sfouf batter is spread in an even layer.
Scatter the pine nuts randomly over the sfouf batter.
Bake to a golden color about 20 to 25minutes. Keep an eye on your oven.
Remove from the oven, allow to cool down completely, divide into medium squares or diamond shapes.