Then cut in the butter and lard until it resembles coarse oatmeal.
Whisk flour, baking powder, and salt together in a large bowl.
Combine egg and vinegar in a measuring cup then add enough water to full 1 cup.
Stir in the liquid, adding enough water to make the dough cling together.
Transfer the dough onto a floured surface and create two equal balls!
Once the dough has been chilled roll it out into 1/8" thick and cut 4' circles.
Fit the circles into a muffin pan, and transfer them back to the refrigerator.
In a saucepan melt butter and brown sugar just until combined then add in a splash of cream and vanilla extract.
Let it cool for 5 minutes then whisk in an egg.
Divide the crushed pecans among the pastry.
Then pour the butter tart filling them until half full.
Bake at 375 for 13-15 minutes or until lightly golden brown!