https://www.thepioneerwoman.com/food-cooking/recipes/a11734/perfect-pie-crust-recipe/

Ingredients<br /> 1 1/2 c. Crisco (vegetable shortening)<br /> 3 c. all-purpose flour<br /> 1 egg<br /> 5 tbsp. cold water<br /> 1 tbsp. white vinegar<br /> 1 tsp. salt

This recipe came out alright using 1/2 lard and 1/2 butter instead of the required Crisco. It required a bit more water to bring the dough together and the result was more crumbly than flaky.

Not sure I'd want to try it again. If I did it would be for savory dishes over sweet pastry use.