I followed the original recipe to the T on this one, and it turned out great: https://smittenkitchen.com/2014/08/apricot-pistachio-squares/ Here it is (in case internet plays tricks in the future): Base: 1 cup A.P. flour, pinch of salt, 1/4 cup sugar and a stick of butter. Run through a food processor and place on a parchment covered baking pan, and bake in 350 degrees oven for 15 mins. Cool. Filling: In the same food processor, grind together 3/4 cup pistachios, a little less than half cup sugar, a pinch of salt, and a tbsp A.P. flour. Add 4 tbsp butter and 1 egg. Spread on slightly cooled base. Top with sliced fresh apricots and bake for about 1 hour. Cool and cut into squares.